adriangbot commented on PR #11460:
URL: https://github.com/apache/arrow-rs/pull/11460#issuecomment-6066767540

   🤖 Benchmark completed (GKE) | 
[trigger](https://github.com/apache/arrow-rs/pull/11460#issuecomment-6065966059)
   
   **Target:** arrow_writer
   
   Comparing b1c118bd52655725911d374aff4d1a0d0b85a4c9 
(b1c118bd52655725911d374aff4d1a0d0b85a4c9) to 
7fc78ca9ecf907de396119a25bc689527f0fd0ea 
[diff](https://github.com/apache/arrow-rs/compare/7fc78ca9ecf907de396119a25bc689527f0fd0ea..b1c118bd52655725911d374aff4d1a0d0b85a4c9)
   
   <details><summary>Run configuration</summary>
   
   ```yaml
   run benchmark arrow_writer
   baseline:
     ref: 7fc78ca9ecf907de396119a25bc689527f0fd0ea
   changed:
     ref: b1c118bd52655725911d374aff4d1a0d0b85a4c9
   shards: 4
   
   ```
   
   </details>
   
   <details><summary>Details</summary>
   
   ```
   group                                                            base        
                           changed
   -----                                                            ----        
                           -------
   bool/bloom_filter                                                1.00     
11.1±0.05ms    22.6 MB/sec    1.00     11.1±0.05ms    22.5 MB/sec
   bool/cdc                                                         1.00     
13.4±0.13ms    18.7 MB/sec    1.01     13.6±0.11ms    18.4 MB/sec
   bool/default                                                     1.02      
9.0±0.10ms    27.7 MB/sec    1.00      8.8±0.02ms    28.3 MB/sec
   bool/number_distinct_values                                      1.01     
19.1±0.21ms    13.1 MB/sec    1.00     18.8±0.03ms    13.3 MB/sec
   bool/parquet_2                                                   1.00     
10.8±0.04ms    23.2 MB/sec    1.02     11.0±0.07ms    22.6 MB/sec
   bool/zstd                                                        1.01      
9.6±0.11ms    26.2 MB/sec    1.00      9.4±0.03ms    26.5 MB/sec
   bool/zstd_parquet_2                                              1.00     
11.2±0.05ms    22.3 MB/sec    1.02     11.5±0.08ms    21.8 MB/sec
   bool_non_null/bloom_filter                                       1.00      
5.2±0.02ms    24.3 MB/sec    1.00      5.2±0.04ms    24.2 MB/sec
   bool_non_null/cdc                                                1.00      
4.1±0.04ms    30.7 MB/sec    1.00      4.1±0.04ms    30.8 MB/sec
   bool_non_null/default                                            1.00      
2.3±0.02ms    54.4 MB/sec    1.01      2.3±0.02ms    54.1 MB/sec
   bool_non_null/number_distinct_values                             1.00     
15.7±0.12ms     8.0 MB/sec    1.00     15.6±0.04ms     8.0 MB/sec
   bool_non_null/parquet_2                                          1.00      
4.6±0.01ms    27.1 MB/sec    1.00      4.6±0.03ms    27.1 MB/sec
   bool_non_null/zstd                                               1.00      
2.6±0.01ms    47.7 MB/sec    1.01      2.7±0.01ms    47.1 MB/sec
   bool_non_null/zstd_parquet_2                                     1.00      
5.0±0.01ms    24.8 MB/sec    1.00      5.0±0.02ms    24.9 MB/sec
   bool_ree/bloom_filter                                            1.00     
27.8±0.09ms     7.7 MB/sec    1.01     28.1±0.27ms     7.6 MB/sec
   bool_ree/cdc                                                     1.00     
28.5±0.10ms     7.5 MB/sec    1.02     29.1±0.42ms     7.3 MB/sec
   bool_ree/default                                                 1.01     
25.3±0.13ms     8.4 MB/sec    1.00     25.1±0.15ms     8.5 MB/sec
   bool_ree/number_distinct_values                                  1.00     
37.3±0.07ms     5.7 MB/sec    1.01     37.6±0.22ms     5.7 MB/sec
   bool_ree/parquet_2                                               1.00     
25.9±0.06ms     8.2 MB/sec    1.01     26.2±0.35ms     8.1 MB/sec
   bool_ree/zstd                                                    1.00     
25.7±0.05ms     8.3 MB/sec    1.01     25.9±0.30ms     8.2 MB/sec
   bool_ree/zstd_parquet_2                                          1.01     
26.5±0.14ms     8.0 MB/sec    1.00     26.3±0.29ms     8.1 MB/sec
   decimal/bloom_filter                                             1.20    
171.0±2.35ms   351.0 MB/sec    1.00    142.0±7.84ms   422.5 MB/sec
   decimal/cdc                                                      1.00    
104.4±0.59ms   574.8 MB/sec    1.02    106.0±2.68ms   565.9 MB/sec
   decimal/default                                                  1.00     
84.8±0.98ms   707.8 MB/sec    1.02     86.6±4.25ms   692.7 MB/sec
   decimal/number_distinct_values                                   1.00    
318.5±2.08ms   188.4 MB/sec    1.07   339.7±43.44ms   176.7 MB/sec
   decimal/parquet_2                                                1.20    
207.9±3.13ms   288.6 MB/sec    1.00    173.7±5.87ms   345.4 MB/sec
   decimal/zstd                                                     1.39    
135.5±1.18ms   442.8 MB/sec    1.00     97.6±4.37ms   614.8 MB/sec
   decimal/zstd_parquet_2                                           1.17    
230.8±2.97ms   260.0 MB/sec    1.00    197.6±8.96ms   303.7 MB/sec
   fixed_size_binary_ree/bloom_filter                               1.00     
63.9±0.40ms    15.8 MB/sec    1.00     63.9±1.03ms    15.8 MB/sec
   fixed_size_binary_ree/cdc                                        1.00     
72.3±0.41ms    13.9 MB/sec    1.00     72.7±1.57ms    13.9 MB/sec
   fixed_size_binary_ree/default                                    1.00     
65.2±1.77ms    15.5 MB/sec    1.02     66.5±3.94ms    15.1 MB/sec
   fixed_size_binary_ree/number_distinct_values                     1.00     
80.5±0.38ms    12.5 MB/sec    1.01     81.6±3.36ms    12.3 MB/sec
   fixed_size_binary_ree/parquet_2                                  1.00     
62.6±0.93ms    16.1 MB/sec    1.01     63.2±3.16ms    15.9 MB/sec
   fixed_size_binary_ree/zstd                                       1.00     
62.8±0.36ms    16.0 MB/sec    1.01     63.3±0.60ms    15.9 MB/sec
   fixed_size_binary_ree/zstd_parquet_2                             1.00     
63.3±0.92ms    15.9 MB/sec    1.00     63.6±2.79ms    15.8 MB/sec
   float_with_nans/bloom_filter                                     1.09     
89.9±1.82ms   155.7 MB/sec    1.00     82.6±2.55ms   169.5 MB/sec
   float_with_nans/cdc                                              1.00     
78.8±0.92ms   177.8 MB/sec    1.02     80.4±1.78ms   174.2 MB/sec
   float_with_nans/default                                          1.00     
70.0±0.95ms   200.0 MB/sec    1.03     71.9±2.22ms   194.8 MB/sec
   float_with_nans/number_distinct_values                           1.00    
169.6±0.38ms    82.5 MB/sec    1.06   179.6±10.67ms    77.9 MB/sec
   float_with_nans/parquet_2                                        1.00     
73.0±0.78ms   191.7 MB/sec    1.01     73.6±1.28ms   190.3 MB/sec
   float_with_nans/zstd                                             1.00    
107.4±1.02ms   130.4 MB/sec    1.02    109.6±2.17ms   127.7 MB/sec
   float_with_nans/zstd_parquet_2                                   1.07    
118.0±2.02ms   118.7 MB/sec    1.00    110.0±2.80ms   127.2 MB/sec
   fsb/bloom_filter                                                 1.00     
13.9±0.35ms  1161.5 MB/sec    1.05     14.5±0.64ms  1110.3 MB/sec
   fsb/cdc                                                          1.00     
16.6±0.22ms   969.6 MB/sec    1.01     16.9±0.31ms   957.0 MB/sec
   fsb/default                                                      1.00     
11.1±0.08ms  1446.7 MB/sec    1.00     11.1±0.12ms  1450.5 MB/sec
   fsb/number_distinct_values                                       1.00     
15.5±0.12ms  1041.0 MB/sec    1.01     15.6±0.63ms  1031.2 MB/sec
   fsb/parquet_2                                                    1.00     
13.4±0.16ms  1201.2 MB/sec    1.07     14.3±0.29ms  1125.7 MB/sec
   fsb/zstd                                                         1.00     
14.1±0.37ms  1142.2 MB/sec    1.03     14.5±0.47ms  1112.0 MB/sec
   fsb/zstd_parquet_2                                               1.01     
13.8±0.11ms  1165.2 MB/sec    1.00     13.7±0.15ms  1178.1 MB/sec
   int32_ree/bloom_filter                                           1.01     
35.0±0.20ms    11.6 MB/sec    1.00     34.7±0.26ms    11.7 MB/sec
   int32_ree/cdc                                                    1.00     
37.3±0.04ms    10.9 MB/sec    1.01     37.8±0.40ms    10.8 MB/sec
   int32_ree/default                                                1.01     
34.6±0.21ms    11.8 MB/sec    1.00     34.1±0.33ms    11.9 MB/sec
   int32_ree/number_distinct_values                                 1.00     
50.2±0.11ms     8.1 MB/sec    1.01     50.9±0.49ms     8.0 MB/sec
   int32_ree/parquet_2                                              1.00     
33.6±0.07ms    12.1 MB/sec    1.01     34.1±0.34ms    11.9 MB/sec
   int32_ree/zstd                                                   1.00     
34.2±0.07ms    11.9 MB/sec    1.01     34.5±0.47ms    11.8 MB/sec
   int32_ree/zstd_parquet_2                                         1.02     
35.2±0.21ms    11.6 MB/sec    1.00     34.5±0.25ms    11.8 MB/sec
   int32_ree_95pct_null/bloom_filter                                1.00     
21.4±0.03ms    19.0 MB/sec    1.00     21.4±0.10ms    19.0 MB/sec
   int32_ree_95pct_null/cdc                                         1.00     
23.4±0.10ms    17.3 MB/sec    1.03     24.1±0.10ms    16.9 MB/sec
   int32_ree_95pct_null/default                                     1.00     
21.2±0.04ms    19.1 MB/sec    1.00     21.2±0.13ms    19.2 MB/sec
   int32_ree_95pct_null/number_distinct_values                      1.00     
22.0±0.02ms    18.5 MB/sec    1.00     22.0±0.05ms    18.5 MB/sec
   int32_ree_95pct_null/parquet_2                                   1.00     
21.3±0.06ms    19.1 MB/sec    1.00     21.3±0.10ms    19.1 MB/sec
   int32_ree_95pct_null/zstd                                        1.00     
21.3±0.03ms    19.1 MB/sec    1.01     21.4±0.06ms    19.0 MB/sec
   int32_ree_95pct_null/zstd_parquet_2                              1.00     
21.3±0.04ms    19.1 MB/sec    1.00     21.4±0.06ms    19.1 MB/sec
   large_string_distinct/delta_byte_array                           1.00     
72.8±4.31ms     3.4 GB/sec    1.07     77.7±5.02ms     3.2 GB/sec
   large_string_distinct/plain                                      1.04     
61.5±0.83ms     4.1 GB/sec    1.00     59.0±5.41ms     4.2 GB/sec
   large_string_distinct_nullable/delta_byte_array                  1.01     
71.2±1.96ms     3.5 GB/sec    1.00     70.7±5.78ms     3.5 GB/sec
   large_string_non_null/bloom_filter                               1.07     
54.8±1.04ms     4.6 GB/sec    1.00     51.4±1.26ms     4.9 GB/sec
   large_string_non_null/cdc                                        1.02    
243.0±1.41ms  1053.5 MB/sec    1.00    238.6±1.08ms  1073.0 MB/sec
   large_string_non_null/default                                    1.00     
51.8±0.07ms     4.8 GB/sec    1.00     52.0±0.67ms     4.8 GB/sec
   large_string_non_null/number_distinct_values                     1.04     
70.5±1.03ms     3.5 GB/sec    1.00     67.7±0.60ms     3.7 GB/sec
   large_string_non_null/parquet_2                                  1.00     
51.8±0.06ms     4.8 GB/sec    1.00     52.0±0.76ms     4.8 GB/sec
   large_string_non_null/zstd                                       1.03     
53.2±0.87ms     4.7 GB/sec    1.00     51.5±0.78ms     4.9 GB/sec
   large_string_non_null/zstd_parquet_2                             1.07     
54.3±0.98ms     4.6 GB/sec    1.00     50.9±0.52ms     4.9 GB/sec
   large_string_shared_prefix/delta_byte_array                      1.03     
43.6±0.15ms     5.7 GB/sec    1.00     42.3±0.27ms     5.9 GB/sec
   large_string_shared_prefix/plain                                 1.05     
95.2±0.68ms     2.6 GB/sec    1.00     90.8±5.22ms     2.8 GB/sec
   large_string_shared_prefix_list/delta_byte_array                 1.00     
55.5±0.36ms     4.5 GB/sec    1.00     55.4±3.07ms     4.5 GB/sec
   large_string_shared_prefix_nullable/delta_byte_array             1.00     
42.8±1.16ms     5.8 GB/sec    1.00     42.9±0.73ms     5.8 GB/sec
   large_string_shared_prefix_nullable/plain                        1.00     
66.2±0.52ms     3.8 GB/sec    1.03     67.9±5.82ms     3.7 GB/sec
   large_string_shared_prefix_nullable_dense/delta_byte_array       1.00     
21.8±0.04ms     5.7 GB/sec    1.01     22.0±0.21ms     5.7 GB/sec
   large_string_shared_prefix_nullable_trailing/delta_byte_array    1.01     
45.2±1.67ms     5.5 GB/sec    1.00     44.8±1.72ms     5.6 GB/sec
   list_nested/bloom_filter                                         1.00    
132.2±0.19ms   218.3 MB/sec    1.07    141.3±5.03ms   204.3 MB/sec
   list_nested/cdc                                                  1.00    
153.0±0.91ms   188.6 MB/sec    1.01    155.0±2.92ms   186.2 MB/sec
   list_nested/default                                              1.15    
142.4±0.46ms   202.6 MB/sec    1.00    123.4±3.83ms   233.9 MB/sec
   list_nested/number_distinct_values                               1.04    
323.2±7.45ms    89.3 MB/sec    1.00   310.5±12.65ms    92.9 MB/sec
   list_nested/parquet_2                                            1.00    
129.2±0.16ms   223.3 MB/sec    1.02    132.1±3.01ms   218.5 MB/sec
   list_nested/zstd                                                 1.00    
129.9±0.68ms   222.1 MB/sec    1.03    133.7±4.41ms   215.9 MB/sec
   list_nested/zstd_parquet_2                                       1.13    
166.0±0.68ms   173.9 MB/sec    1.00    147.4±3.50ms   195.8 MB/sec
   list_primitive/bloom_filter                                      1.00   
300.8±18.44ms  1813.2 MB/sec    1.02   305.6±21.87ms  1784.6 MB/sec
   list_primitive/cdc                                               1.00    
298.3±1.27ms  1828.2 MB/sec    1.06   317.4±20.88ms  1718.0 MB/sec
   list_primitive/default                                           1.00    
191.7±1.48ms     2.8 GB/sec    1.07   205.2±16.88ms     2.6 GB/sec
   list_primitive/number_distinct_values                            1.00    
403.2±8.55ms  1352.5 MB/sec    1.07   433.0±27.57ms  1259.6 MB/sec
   list_primitive/parquet_2                                         1.00    
205.0±1.21ms     2.6 GB/sec    1.08   220.9±19.80ms     2.4 GB/sec
   list_primitive/zstd                                              1.00    
460.2±5.32ms  1185.0 MB/sec    1.10   507.7±36.18ms  1074.3 MB/sec
   list_primitive/zstd_parquet_2                                    1.00    
432.3±1.86ms  1261.5 MB/sec    1.04   450.3±17.40ms  1211.1 MB/sec
   list_primitive_non_null/bloom_filter                             1.00   
388.7±17.91ms  1400.1 MB/sec    1.06   410.4±42.61ms  1326.1 MB/sec
   list_primitive_non_null/cdc                                      1.00    
376.9±7.33ms  1444.2 MB/sec    1.11   418.3±31.48ms  1301.2 MB/sec
   list_primitive_non_null/default                                  1.10    
229.9±2.81ms     2.3 GB/sec    1.00   208.6±25.96ms     2.5 GB/sec
   list_primitive_non_null/number_distinct_values                   1.08   
656.1±40.43ms   829.5 MB/sec    1.00   609.0±24.91ms   893.7 MB/sec
   list_primitive_non_null/parquet_2                                1.00    
230.2±6.27ms     2.3 GB/sec    1.06   245.2±41.00ms     2.2 GB/sec
   list_primitive_non_null/zstd                                     1.00    
681.9±3.73ms   798.1 MB/sec    1.03   701.1±37.84ms   776.3 MB/sec
   list_primitive_non_null/zstd_parquet_2                           1.04   
644.7±18.69ms   844.2 MB/sec    1.00    621.5±8.37ms   875.7 MB/sec
   list_primitive_sparse_99pct_null/bloom_filter                    1.00     
13.5±0.11ms     2.7 GB/sec    1.01     13.6±0.19ms     2.7 GB/sec
   list_primitive_sparse_99pct_null/cdc                             1.00     
24.1±0.07ms  1551.4 MB/sec    1.00     24.0±0.15ms  1555.8 MB/sec
   list_primitive_sparse_99pct_null/default                         1.00     
12.9±0.11ms     2.8 GB/sec    1.00     13.0±0.16ms     2.8 GB/sec
   list_primitive_sparse_99pct_null/number_distinct_values          1.00     
13.2±0.08ms     2.8 GB/sec    1.00     13.2±0.16ms     2.8 GB/sec
   list_primitive_sparse_99pct_null/parquet_2                       1.00     
12.7±0.10ms     2.9 GB/sec    1.00     12.7±0.14ms     2.9 GB/sec
   list_primitive_sparse_99pct_null/zstd                            1.00     
14.9±0.09ms     2.4 GB/sec    1.00     14.9±0.17ms     2.4 GB/sec
   list_primitive_sparse_99pct_null/zstd_parquet_2                  1.00     
12.5±0.03ms     2.9 GB/sec    1.00     12.5±0.10ms     2.9 GB/sec
   list_struct_with_list/bloom_filter                               1.00    
255.6±0.61ms   178.4 MB/sec    1.07    272.3±6.95ms   167.5 MB/sec
   list_struct_with_list/cdc                                        1.00    
300.7±1.18ms   151.6 MB/sec    1.04   313.3±10.66ms   145.5 MB/sec
   list_struct_with_list/default                                    1.00    
234.4±1.25ms   194.5 MB/sec    1.04    243.4±7.65ms   187.4 MB/sec
   list_struct_with_list/number_distinct_values                     1.00   
549.2±11.93ms    83.0 MB/sec    1.04   569.8±15.63ms    80.0 MB/sec
   list_struct_with_list/parquet_2                                  1.00    
244.3±0.41ms   186.6 MB/sec    1.04   254.3±11.58ms   179.3 MB/sec
   list_struct_with_list/zstd                                       1.00    
252.4±0.37ms   180.7 MB/sec    1.05    263.8±6.30ms   172.8 MB/sec
   list_struct_with_list/zstd_parquet_2                             1.00    
266.8±3.13ms   170.9 MB/sec    1.04    277.3±9.05ms   164.4 MB/sec
   medium_string_shared_prefix_nullable/delta_byte_array            1.00     
38.1±0.63ms     6.6 GB/sec    1.12     42.8±0.76ms     5.8 GB/sec
   ndv/bool/ndv_on                                                  1.00      
9.8±0.02ms     8.1 MB/sec    1.01      9.8±0.10ms     8.1 MB/sec
   ndv/fsb16_high_cardinality/ndv_on                                1.00     
42.5±1.45ms   235.1 MB/sec    1.02     43.4±1.05ms   230.7 MB/sec
   ndv/fsb16_low_cardinality/ndv_on                                 1.00     
35.1±0.20ms   285.1 MB/sec    1.00     35.2±0.28ms   284.2 MB/sec
   ndv/int32_high_cardinality/ndv_on                                1.00     
28.8±0.60ms    86.9 MB/sec    1.05     30.2±0.80ms    82.8 MB/sec
   ndv/int32_low_cardinality/ndv_on                                 1.00     
16.2±0.06ms   154.4 MB/sec    1.00     16.2±0.05ms   154.6 MB/sec
   ndv/large_binary_high_cardinality/ndv_on                         1.00     
37.7±0.08ms   198.7 MB/sec    1.00     37.7±0.11ms   198.9 MB/sec
   ndv/large_binary_low_cardinality/ndv_on                          1.00     
24.9±0.09ms   601.3 MB/sec    1.02     25.4±0.11ms   591.2 MB/sec
   ndv/utf8_high_cardinality/ndv_on                                 1.00     
79.2±3.92ms     2.0 GB/sec    1.05     83.1±5.61ms  1955.1 MB/sec
   ndv/utf8_low_cardinality/ndv_on                                  1.00     
23.8±0.07ms   315.3 MB/sec    1.02     24.2±0.08ms   309.7 MB/sec
   ndv/utf8_view_high_cardinality/ndv_on                            1.00     
41.2±2.17ms   242.5 MB/sec    1.06     43.6±2.42ms   229.4 MB/sec
   ndv/utf8_view_low_cardinality/ndv_on                             1.00     
23.6±0.08ms   423.3 MB/sec    1.00     23.7±0.08ms   422.3 MB/sec
   primitive/bloom_filter                                           1.00    
127.6±0.61ms   351.6 MB/sec    1.06    135.7±2.20ms   330.7 MB/sec
   primitive/cdc                                                    1.00    
148.8±1.22ms   301.6 MB/sec    1.02    152.3±2.45ms   294.7 MB/sec
   primitive/default                                                1.00    
107.0±0.91ms   419.4 MB/sec    1.02    109.4±2.45ms   410.2 MB/sec
   primitive/number_distinct_values                                 1.01    
343.1±4.28ms   130.8 MB/sec    1.00    339.7±5.97ms   132.1 MB/sec
   primitive/parquet_2                                              1.00    
116.0±0.43ms   386.7 MB/sec    1.02    118.8±2.09ms   377.7 MB/sec
   primitive/zstd                                                   1.00    
138.1±1.32ms   325.0 MB/sec    1.04    143.9±3.08ms   311.9 MB/sec
   primitive/zstd_parquet_2                                         1.00    
151.0±0.96ms   297.3 MB/sec    1.03    155.4±2.43ms   288.8 MB/sec
   primitive_all_null/bloom_filter                                  1.10    
905.7±5.94µs    48.4 GB/sec    1.00    826.7±5.03µs    53.0 GB/sec
   primitive_all_null/cdc                                           1.02     
19.0±0.30ms     2.3 GB/sec    1.00     18.7±0.29ms     2.3 GB/sec
   primitive_all_null/default                                       1.29    
270.7±1.80µs   161.9 GB/sec    1.00    210.3±1.63µs   208.3 GB/sec
   primitive_all_null/number_distinct_values                        1.28    
268.8±1.84µs   163.0 GB/sec    1.00    210.2±1.45µs   208.5 GB/sec
   primitive_all_null/parquet_2                                     1.28    
275.4±2.31µs   159.1 GB/sec    1.00    214.8±2.48µs   204.0 GB/sec
   primitive_all_null/zstd                                          1.31    
419.7±1.94µs   104.4 GB/sec    1.00    319.3±2.16µs   137.2 GB/sec
   primitive_all_null/zstd_parquet_2                                1.31    
374.2±2.26µs   117.1 GB/sec    1.00    286.1±2.39µs   153.2 GB/sec
   primitive_non_null/bloom_filter                                  1.00     
89.7±0.36ms   490.4 MB/sec    1.12    100.2±2.12ms   439.2 MB/sec
   primitive_non_null/cdc                                           1.00     
78.3±0.42ms   561.8 MB/sec    1.03     80.9±1.53ms   543.6 MB/sec
   primitive_non_null/default                                       1.00     
57.7±0.69ms   762.2 MB/sec    1.05     60.4±1.99ms   728.9 MB/sec
   primitive_non_null/number_distinct_values                        1.11   
503.2±10.71ms    87.4 MB/sec    1.00    455.0±8.63ms    96.7 MB/sec
   primitive_non_null/parquet_2                                     1.00     
71.7±0.20ms   614.0 MB/sec    1.03     73.9±1.64ms   595.1 MB/sec
   primitive_non_null/zstd                                          1.00     
90.4±0.74ms   486.7 MB/sec    1.06     95.6±2.54ms   460.2 MB/sec
   primitive_non_null/zstd_parquet_2                                1.00    
108.8±1.34ms   404.6 MB/sec    1.04    113.2±2.96ms   388.6 MB/sec
   primitive_sparse_99pct_null/bloom_filter                         1.00     
12.6±0.39ms     3.5 GB/sec    1.00     12.6±0.20ms     3.5 GB/sec
   primitive_sparse_99pct_null/cdc                                  1.00     
30.9±0.37ms  1454.0 MB/sec    1.06     32.9±0.49ms  1365.9 MB/sec
   primitive_sparse_99pct_null/default                              1.01     
11.3±0.10ms     3.9 GB/sec    1.00     11.2±0.07ms     3.9 GB/sec
   primitive_sparse_99pct_null/number_distinct_values               1.00     
13.8±0.04ms     3.2 GB/sec    1.00     13.8±0.06ms     3.2 GB/sec
   primitive_sparse_99pct_null/parquet_2                            1.01     
11.2±0.16ms     3.9 GB/sec    1.00     11.0±0.10ms     4.0 GB/sec
   primitive_sparse_99pct_null/zstd                                 1.00     
14.5±0.26ms     3.0 GB/sec    1.02     14.8±0.11ms     3.0 GB/sec
   primitive_sparse_99pct_null/zstd_parquet_2                       1.00     
13.4±0.09ms     3.3 GB/sec    1.01     13.5±0.11ms     3.3 GB/sec
   short_string_non_null/bloom_filter                               1.00     
26.3±0.08ms   456.7 MB/sec    1.02     26.9±0.34ms   446.3 MB/sec
   short_string_non_null/cdc                                        1.00     
19.5±0.04ms   616.4 MB/sec    1.03     20.1±0.20ms   596.6 MB/sec
   short_string_non_null/default                                    1.00     
15.5±0.04ms   773.1 MB/sec    1.03     16.0±0.24ms   749.4 MB/sec
   short_string_non_null/number_distinct_values                     1.00     
69.9±0.47ms   171.7 MB/sec    1.10     76.9±9.68ms   156.0 MB/sec
   short_string_non_null/parquet_2                                  1.00     
24.7±0.03ms   485.9 MB/sec    1.03     25.4±0.15ms   471.7 MB/sec
   short_string_non_null/zstd                                       1.00     
35.9±0.15ms   333.9 MB/sec    1.03     37.0±0.38ms   324.4 MB/sec
   short_string_non_null/zstd_parquet_2                             1.00     
27.6±0.05ms   434.2 MB/sec    1.03     28.3±0.15ms   423.3 MB/sec
   small_string_distinct/delta_byte_array                           1.02  
1129.0±51.98µs     6.9 GB/sec    1.00  1111.3±63.12µs     7.1 GB/sec
   small_string_distinct/plain                                      1.00   
876.3±26.17µs     9.0 GB/sec    1.00   876.8±33.89µs     8.9 GB/sec
   small_string_partial_prefix/delta_byte_array                     1.03  
1298.2±92.04µs     6.0 GB/sec    1.00  1261.0±74.58µs     6.2 GB/sec
   small_string_partial_prefix/plain                                1.01  
1286.4±85.44µs     6.1 GB/sec    1.00  1271.0±72.68µs     6.2 GB/sec
   small_string_shared_prefix/delta_byte_array                      1.00  
1012.6±14.94µs     7.7 GB/sec    1.02  1028.4±12.86µs     7.6 GB/sec
   small_string_shared_prefix/plain                                 1.00   
1035.9±5.26µs     7.6 GB/sec    1.12  1157.0±10.19µs     6.8 GB/sec
   string/bloom_filter                                              1.22   
220.5±24.29ms     2.3 GB/sec    1.00   180.4±15.23ms     2.8 GB/sec
   string/cdc                                                       1.00    
208.1±7.64ms     2.5 GB/sec    1.01   210.7±15.76ms     2.4 GB/sec
   string/default                                                   1.57   
136.1±24.41ms     3.8 GB/sec    1.00     86.8±7.38ms     5.9 GB/sec
   string/number_distinct_values                                    1.05    
223.6±4.49ms     2.3 GB/sec    1.00   213.0±25.16ms     2.4 GB/sec
   string/parquet_2                                                 1.72    
168.3±2.34ms     3.0 GB/sec    1.00     97.7±3.69ms     5.2 GB/sec
   string/zstd                                                      1.05   
463.7±10.44ms  1130.6 MB/sec    1.00   443.7±22.51ms  1181.6 MB/sec
   string/zstd_parquet_2                                            1.00    
383.9±7.63ms  1365.4 MB/sec    1.05   402.2±29.17ms  1303.5 MB/sec
   string_and_binary_view/bloom_filter                              1.00     
66.3±1.31ms   486.2 MB/sec    1.02     68.0±1.68ms   474.3 MB/sec
   string_and_binary_view/cdc                                       1.00     
62.0±1.34ms   520.3 MB/sec    1.01     62.8±1.69ms   513.7 MB/sec
   string_and_binary_view/default                                   1.00     
51.0±1.36ms   632.0 MB/sec    1.01     51.7±1.51ms   623.5 MB/sec
   string_and_binary_view/number_distinct_values                    1.00    
114.6±1.96ms   281.5 MB/sec    1.01    116.0±2.30ms   277.9 MB/sec
   string_and_binary_view/parquet_2                                 1.01     
58.7±0.39ms   549.1 MB/sec    1.00     58.1±0.71ms   554.8 MB/sec
   string_and_binary_view/zstd                                      1.00     
86.7±0.73ms   372.1 MB/sec    1.02     88.7±1.38ms   363.5 MB/sec
   string_and_binary_view/zstd_parquet_2                            1.00     
72.1±0.23ms   447.0 MB/sec    1.01     72.8±1.11ms   443.0 MB/sec
   string_dictionary/bloom_filter                                   1.31    
135.0±6.33ms  1956.5 MB/sec    1.00    103.4±6.99ms     2.5 GB/sec
   string_dictionary/cdc                                            1.65     
87.8±5.30ms     2.9 GB/sec    1.00     53.3±5.73ms     4.8 GB/sec
   string_dictionary/default                                        2.05     
94.3±2.18ms     2.7 GB/sec    1.00     46.1±2.35ms     5.6 GB/sec
   string_dictionary/number_distinct_values                         1.00     
98.2±1.57ms     2.6 GB/sec    1.08   106.3±11.50ms     2.4 GB/sec
   string_dictionary/parquet_2                                      1.00     
46.8±0.12ms     5.5 GB/sec    1.04     48.6±3.55ms     5.3 GB/sec
   string_dictionary/zstd                                           1.06    
244.2±4.54ms  1081.7 MB/sec    1.00   229.7±17.85ms  1149.8 MB/sec
   string_dictionary/zstd_parquet_2                                 1.16    
230.7±1.67ms  1145.1 MB/sec    1.00    198.3±9.46ms  1332.1 MB/sec
   string_dictionary_low_cardinality_100/bloom_filter               1.00     
21.5±0.08ms   186.8 MB/sec    1.00     21.5±0.05ms   186.3 MB/sec
   string_dictionary_low_cardinality_100/cdc                        1.00     
23.6±0.09ms   169.9 MB/sec    1.01     23.9±0.12ms   167.7 MB/sec
   string_dictionary_low_cardinality_100/default                    1.00     
21.3±0.07ms   187.7 MB/sec    1.00     21.4±0.06ms   187.2 MB/sec
   string_dictionary_low_cardinality_100/number_distinct_values     1.00     
44.7±0.15ms    89.6 MB/sec    1.00     44.9±1.00ms    89.1 MB/sec
   string_dictionary_low_cardinality_100/parquet_2                  1.00     
21.3±0.09ms   188.3 MB/sec    1.01     21.6±0.22ms   185.6 MB/sec
   string_dictionary_low_cardinality_100/zstd                       1.00     
22.2±0.05ms   180.8 MB/sec    1.00     22.1±0.05ms   181.2 MB/sec
   string_dictionary_low_cardinality_100/zstd_parquet_2             1.00     
22.1±0.05ms   181.0 MB/sec    1.00     22.1±0.05ms   181.6 MB/sec
   string_dictionary_low_cardinality_20/bloom_filter                1.00     
21.4±0.07ms   187.2 MB/sec    1.02     21.9±0.21ms   182.8 MB/sec
   string_dictionary_low_cardinality_20/cdc                         1.00     
23.6±0.08ms   169.6 MB/sec    1.02     24.1±0.09ms   166.2 MB/sec
   string_dictionary_low_cardinality_20/default                     1.00     
21.3±0.08ms   188.2 MB/sec    1.02     21.8±0.21ms   184.0 MB/sec
   string_dictionary_low_cardinality_20/number_distinct_values      1.03     
45.3±0.08ms    88.5 MB/sec    1.00     44.1±1.04ms    90.8 MB/sec
   string_dictionary_low_cardinality_20/parquet_2                   1.02     
21.5±0.06ms   185.9 MB/sec    1.00     21.2±0.12ms   188.9 MB/sec
   string_dictionary_low_cardinality_20/zstd                        1.01     
21.7±0.04ms   184.7 MB/sec    1.00     21.4±0.06ms   187.5 MB/sec
   string_dictionary_low_cardinality_20/zstd_parquet_2              1.01     
21.7±0.06ms   184.8 MB/sec    1.00     21.4±0.15ms   187.5 MB/sec
   string_dictionary_low_cardinality_400/bloom_filter               1.00     
22.1±0.05ms   181.2 MB/sec    1.00     22.2±0.10ms   181.1 MB/sec
   string_dictionary_low_cardinality_400/cdc                        1.00     
24.2±0.05ms   165.5 MB/sec    1.00     24.3±0.11ms   165.0 MB/sec
   string_dictionary_low_cardinality_400/default                    1.00     
21.9±0.10ms   183.6 MB/sec    1.00     21.9±0.05ms   183.5 MB/sec
   string_dictionary_low_cardinality_400/number_distinct_values     1.00     
45.8±0.12ms    87.6 MB/sec    1.00     45.6±0.89ms    87.9 MB/sec
   string_dictionary_low_cardinality_400/parquet_2                  1.00     
22.2±0.11ms   180.8 MB/sec    1.01     22.4±0.06ms   179.0 MB/sec
   string_dictionary_low_cardinality_400/zstd                       1.00     
22.5±0.05ms   178.0 MB/sec    1.01     22.7±0.17ms   176.9 MB/sec
   string_dictionary_low_cardinality_400/zstd_parquet_2             1.00     
22.5±0.05ms   178.5 MB/sec    1.00     22.5±0.06ms   177.9 MB/sec
   string_non_null/bloom_filter                                     1.03   
274.0±20.50ms  1912.1 MB/sec    1.00   265.1±28.71ms  1976.8 MB/sec
   string_non_null/cdc                                              1.01    
256.6±9.81ms  2042.3 MB/sec    1.00   254.5±24.39ms     2.0 GB/sec
   string_non_null/default                                          1.16   
109.9±10.96ms     4.7 GB/sec    1.00    94.4±15.75ms     5.4 GB/sec
   string_non_null/number_distinct_values                           1.00   
285.8±10.99ms  1833.6 MB/sec    1.01   288.5±40.46ms  1816.5 MB/sec
   string_non_null/parquet_2                                        1.05    
115.2±6.98ms     4.4 GB/sec    1.00   109.8±17.12ms     4.7 GB/sec
   string_non_null/zstd                                             1.00    
550.5±1.97ms   951.9 MB/sec    1.05   577.7±34.83ms   907.0 MB/sec
   string_non_null/zstd_parquet_2                                   1.00   
501.3±10.21ms  1045.4 MB/sec    1.04   519.0±24.58ms  1009.7 MB/sec
   string_ree/bloom_filter                                          1.70    
186.8±9.72ms    87.8 MB/sec    1.00    109.8±8.79ms   149.5 MB/sec
   string_ree/cdc                                                   1.20    
227.2±0.60ms    72.2 MB/sec    1.00   188.6±18.28ms    87.0 MB/sec
   string_ree/default                                               1.54    
129.2±1.38ms   127.0 MB/sec    1.00    83.8±13.60ms   195.9 MB/sec
   string_ree/number_distinct_values                                1.12    
138.5±2.14ms   118.4 MB/sec    1.00   124.0±12.47ms   132.4 MB/sec
   string_ree/parquet_2                                             1.64    
128.8±0.40ms   127.4 MB/sec    1.00     78.4±1.83ms   209.3 MB/sec
   string_ree/zstd                                                  1.30    
192.0±3.68ms    85.4 MB/sec    1.00    147.3±5.36ms   111.4 MB/sec
   string_ree/zstd_parquet_2                                        1.49    
139.0±0.72ms   118.0 MB/sec    1.00     93.2±2.13ms   176.0 MB/sec
   string_ree_95pct_null/bloom_filter                               1.00     
24.4±0.04ms    57.7 MB/sec    1.00     24.5±0.15ms    57.5 MB/sec
   string_ree_95pct_null/cdc                                        1.00     
32.1±0.12ms    43.9 MB/sec    1.01     32.3±0.18ms    43.5 MB/sec
   string_ree_95pct_null/default                                    1.00     
25.0±0.09ms    56.2 MB/sec    1.00     25.1±0.44ms    56.0 MB/sec
   string_ree_95pct_null/number_distinct_values                     1.00     
26.6±0.12ms    52.8 MB/sec    1.00     26.6±0.43ms    52.8 MB/sec
   string_ree_95pct_null/parquet_2                                  1.00     
25.0±0.09ms    56.3 MB/sec    1.00     25.1±0.38ms    56.0 MB/sec
   string_ree_95pct_null/zstd                                       1.00     
25.0±0.05ms    56.4 MB/sec    1.00     25.1±0.25ms    56.1 MB/sec
   string_ree_95pct_null/zstd_parquet_2                             1.00     
25.6±0.14ms    54.9 MB/sec    1.00     25.6±0.47ms    54.9 MB/sec
   struct_all_null/bloom_filter                                     1.08    
377.0±1.33µs    41.8 GB/sec    1.00    348.1±1.22µs    45.2 GB/sec
   struct_all_null/cdc                                              1.03      
7.7±0.08ms     2.0 GB/sec    1.00      7.5±0.07ms     2.1 GB/sec
   struct_all_null/default                                          1.26    
115.5±0.73µs   136.4 GB/sec    1.00     91.5±0.58µs   172.1 GB/sec
   struct_all_null/number_distinct_values                           1.27    
116.3±0.66µs   135.4 GB/sec    1.00     91.9±0.68µs   171.4 GB/sec
   struct_all_null/parquet_2                                        1.28    
119.4±0.95µs   131.9 GB/sec    1.00     93.1±1.22µs   169.1 GB/sec
   struct_all_null/zstd                                             1.31    
179.7±0.78µs    87.7 GB/sec    1.00    137.0±0.83µs   114.9 GB/sec
   struct_all_null/zstd_parquet_2                                   1.29    
158.8±0.78µs    99.2 GB/sec    1.00    123.2±1.11µs   127.9 GB/sec
   struct_non_null/bloom_filter                                     1.00     
39.9±0.35ms   401.1 MB/sec    1.07     42.8±1.09ms   374.1 MB/sec
   struct_non_null/cdc                                              1.00     
39.7±0.19ms   402.6 MB/sec    1.03     40.9±0.97ms   391.2 MB/sec
   struct_non_null/default                                          1.00     
27.3±0.46ms   585.5 MB/sec    1.01     27.7±0.60ms   577.0 MB/sec
   struct_non_null/number_distinct_values                           1.00    
188.3±2.83ms    85.0 MB/sec    1.10   208.0±29.70ms    76.9 MB/sec
   struct_non_null/parquet_2                                        1.00     
33.8±0.40ms   472.7 MB/sec    1.02     34.7±0.88ms   461.2 MB/sec
   struct_non_null/zstd                                             1.00     
35.3±0.30ms   452.7 MB/sec    1.08     38.1±1.00ms   420.4 MB/sec
   struct_non_null/zstd_parquet_2                                   1.00     
46.3±0.08ms   345.4 MB/sec    1.04     48.2±0.71ms   331.9 MB/sec
   struct_sparse_99pct_null/bloom_filter                            1.00      
6.5±0.04ms     2.4 GB/sec    1.02      6.6±0.06ms     2.4 GB/sec
   struct_sparse_99pct_null/cdc                                     1.00     
13.9±0.22ms  1160.4 MB/sec    1.12     15.5±0.22ms  1038.4 MB/sec
   struct_sparse_99pct_null/default                                 1.00      
6.0±0.03ms     2.6 GB/sec    1.03      6.1±0.06ms     2.6 GB/sec
   struct_sparse_99pct_null/number_distinct_values                  1.00      
7.8±0.24ms     2.0 GB/sec    1.11      8.7±0.17ms  1857.2 MB/sec
   struct_sparse_99pct_null/parquet_2                               1.00      
5.9±0.02ms     2.7 GB/sec    1.05      6.2±0.06ms     2.5 GB/sec
   struct_sparse_99pct_null/zstd                                    1.00      
7.3±0.01ms     2.2 GB/sec    1.04      7.6±0.08ms     2.1 GB/sec
   struct_sparse_99pct_null/zstd_parquet_2                          1.00      
6.8±0.02ms     2.3 GB/sec    1.02      6.9±0.07ms     2.3 GB/sec
   
   ```
   
   </details>
   
   <details><summary>Per-runner information</summary>
   
   <details><summary>arrow&#95;writer — shard 1/4</summary>
   
   **Node:** gk3-benchmark-cluster-nap-101n84r4-9ad7f920-gxhw
   
   **Instance:** c4a-highmem-16 (12 vCPU / 65 GiB)
   
   **uname:**
   
   ```text
   Linux bench-c6065966059-3178-brnvq 6.12.94+ #1 SMP Fri Aug 21 08:00:16 UTC 
2026 aarch64 GNU/Linux
   ```
   
   **BENCH_COMMAND:**
   
   ```sh
   cargo bench --features=arrow,async,test_common,experimental,object_store 
--bench arrow_writer
   ```
   
   <details><summary>CPU Details (lscpu)</summary>
   
   ```text
   Architecture:                            aarch64
   CPU op-mode(s):                          64-bit
   Byte Order:                              Little Endian
   CPU(s):                                  16
   On-line CPU(s) list:                     0-15
   Vendor ID:                               ARM
   Model name:                              Neoverse-V2
   Model:                                   1
   Thread(s) per core:                      1
   Core(s) per cluster:                     16
   Socket(s):                               -
   Cluster(s):                              1
   Stepping:                                r0p1
   BogoMIPS:                                2000.00
   Flags:                                   fp asimd evtstrm aes pmull sha1 
sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 
sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm sb paca pacg dcpodp sve2 
sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm 
bf16 dgh rng bti
   L1d cache:                               1 MiB (16 instances)
   L1i cache:                               1 MiB (16 instances)
   L2 cache:                                32 MiB (16 instances)
   L3 cache:                                80 MiB (1 instance)
   NUMA node(s):                            1
   NUMA node0 CPU(s):                       0-15
   Vulnerability Gather data sampling:      Not affected
   Vulnerability Indirect target selection: Not affected
   Vulnerability Itlb multihit:             Not affected
   Vulnerability L1tf:                      Not affected
   Vulnerability Mds:                       Not affected
   Vulnerability Meltdown:                  Not affected
   Vulnerability Mmio stale data:           Not affected
   Vulnerability Reg file data sampling:    Not affected
   Vulnerability Retbleed:                  Not affected
   Vulnerability Spec rstack overflow:      Not affected
   Vulnerability Spec store bypass:         Mitigation; Speculative Store 
Bypass disabled via prctl
   Vulnerability Spectre v1:                Mitigation; __user pointer 
sanitization
   Vulnerability Spectre v2:                Mitigation; CSV2, BHB
   Vulnerability Srbds:                     Not affected
   Vulnerability Tsa:                       Not affected
   Vulnerability Tsx async abort:           Not affected
   Vulnerability Vmscape:                   Not affected
   ```
   
   </details>
   
   <details><summary>Resource Usage</summary>
   
   **base (merge-base)**
   | Metric | Value |
   |--------|-------|
   | Wall time | 805.2s |
   | Peak memory | 2.8 GiB |
   | Avg memory | 2.5 GiB |
   | CPU user | 771.7s |
   | CPU sys | 30.3s |
   | Peak spill | 0 B |
   
   **branch**
   | Metric | Value |
   |--------|-------|
   | Wall time | 795.2s |
   | Peak memory | 3.0 GiB |
   | Avg memory | 2.4 GiB |
   | CPU user | 776.3s |
   | CPU sys | 16.6s |
   | Peak spill | 0 B |
   
   
   </details>
   
   </details>
   
   <details><summary>arrow&#95;writer — shard 2/4</summary>
   
   **Node:** gk3-benchmark-cluster-nap-1p8mzl3a-8368b426-czzt
   
   **Instance:** c4a-highmem-16 (12 vCPU / 65 GiB)
   
   **uname:**
   
   ```text
   Linux bench-c6065966059-3179-w97sb 6.12.94+ #1 SMP Fri Aug 21 08:00:16 UTC 
2026 aarch64 GNU/Linux
   ```
   
   **BENCH_COMMAND:**
   
   ```sh
   cargo bench --features=arrow,async,test_common,experimental,object_store 
--bench arrow_writer
   ```
   
   <details><summary>CPU Details (lscpu)</summary>
   
   ```text
   Architecture:                            aarch64
   CPU op-mode(s):                          64-bit
   Byte Order:                              Little Endian
   CPU(s):                                  16
   On-line CPU(s) list:                     0-15
   Vendor ID:                               ARM
   Model name:                              Neoverse-V2
   Model:                                   1
   Thread(s) per core:                      1
   Core(s) per cluster:                     16
   Socket(s):                               -
   Cluster(s):                              1
   Stepping:                                r0p1
   BogoMIPS:                                2000.00
   Flags:                                   fp asimd evtstrm aes pmull sha1 
sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 
sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm sb paca pacg dcpodp sve2 
sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm 
bf16 dgh rng bti
   L1d cache:                               1 MiB (16 instances)
   L1i cache:                               1 MiB (16 instances)
   L2 cache:                                32 MiB (16 instances)
   L3 cache:                                80 MiB (1 instance)
   NUMA node(s):                            1
   NUMA node0 CPU(s):                       0-15
   Vulnerability Gather data sampling:      Not affected
   Vulnerability Indirect target selection: Not affected
   Vulnerability Itlb multihit:             Not affected
   Vulnerability L1tf:                      Not affected
   Vulnerability Mds:                       Not affected
   Vulnerability Meltdown:                  Not affected
   Vulnerability Mmio stale data:           Not affected
   Vulnerability Reg file data sampling:    Not affected
   Vulnerability Retbleed:                  Not affected
   Vulnerability Spec rstack overflow:      Not affected
   Vulnerability Spec store bypass:         Mitigation; Speculative Store 
Bypass disabled via prctl
   Vulnerability Spectre v1:                Mitigation; __user pointer 
sanitization
   Vulnerability Spectre v2:                Mitigation; CSV2, BHB
   Vulnerability Srbds:                     Not affected
   Vulnerability Tsa:                       Not affected
   Vulnerability Tsx async abort:           Not affected
   Vulnerability Vmscape:                   Not affected
   ```
   
   </details>
   
   <details><summary>Resource Usage</summary>
   
   **base (merge-base)**
   | Metric | Value |
   |--------|-------|
   | Wall time | 1130.2s |
   | Peak memory | 2.9 GiB |
   | Avg memory | 2.6 GiB |
   | CPU user | 1080.2s |
   | CPU sys | 46.1s |
   | Peak spill | 0 B |
   
   **branch**
   | Metric | Value |
   |--------|-------|
   | Wall time | 1130.3s |
   | Peak memory | 3.0 GiB |
   | Avg memory | 2.5 GiB |
   | CPU user | 1087.7s |
   | CPU sys | 38.7s |
   | Peak spill | 0 B |
   
   
   </details>
   
   </details>
   
   <details><summary>arrow&#95;writer — shard 3/4</summary>
   
   **Node:** gk3-benchmark-cluster-nap-101n84r4-59aaa3df-hg9x
   
   **Instance:** c4a-highmem-16 (12 vCPU / 65 GiB)
   
   **uname:**
   
   ```text
   Linux bench-c6065966059-3180-d7j2x 6.12.94+ #1 SMP Fri Aug 21 08:00:16 UTC 
2026 aarch64 GNU/Linux
   ```
   
   **BENCH_COMMAND:**
   
   ```sh
   cargo bench --features=arrow,async,test_common,experimental,object_store 
--bench arrow_writer
   ```
   
   <details><summary>CPU Details (lscpu)</summary>
   
   ```text
   Architecture:                            aarch64
   CPU op-mode(s):                          64-bit
   Byte Order:                              Little Endian
   CPU(s):                                  16
   On-line CPU(s) list:                     0-15
   Vendor ID:                               ARM
   Model name:                              Neoverse-V2
   Model:                                   1
   Thread(s) per core:                      1
   Core(s) per cluster:                     16
   Socket(s):                               -
   Cluster(s):                              1
   Stepping:                                r0p1
   BogoMIPS:                                2000.00
   Flags:                                   fp asimd evtstrm aes pmull sha1 
sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 
sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm sb paca pacg dcpodp sve2 
sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm 
bf16 dgh rng bti
   L1d cache:                               1 MiB (16 instances)
   L1i cache:                               1 MiB (16 instances)
   L2 cache:                                32 MiB (16 instances)
   L3 cache:                                80 MiB (1 instance)
   NUMA node(s):                            1
   NUMA node0 CPU(s):                       0-15
   Vulnerability Gather data sampling:      Not affected
   Vulnerability Indirect target selection: Not affected
   Vulnerability Itlb multihit:             Not affected
   Vulnerability L1tf:                      Not affected
   Vulnerability Mds:                       Not affected
   Vulnerability Meltdown:                  Not affected
   Vulnerability Mmio stale data:           Not affected
   Vulnerability Reg file data sampling:    Not affected
   Vulnerability Retbleed:                  Not affected
   Vulnerability Spec rstack overflow:      Not affected
   Vulnerability Spec store bypass:         Mitigation; Speculative Store 
Bypass disabled via prctl
   Vulnerability Spectre v1:                Mitigation; __user pointer 
sanitization
   Vulnerability Spectre v2:                Mitigation; CSV2, BHB
   Vulnerability Srbds:                     Not affected
   Vulnerability Tsa:                       Not affected
   Vulnerability Tsx async abort:           Not affected
   Vulnerability Vmscape:                   Not affected
   ```
   
   </details>
   
   <details><summary>Resource Usage</summary>
   
   **base (merge-base)**
   | Metric | Value |
   |--------|-------|
   | Wall time | 1240.3s |
   | Peak memory | 3.0 GiB |
   | Avg memory | 2.6 GiB |
   | CPU user | 1193.7s |
   | CPU sys | 40.8s |
   | Peak spill | 0 B |
   
   **branch**
   | Metric | Value |
   |--------|-------|
   | Wall time | 1230.3s |
   | Peak memory | 3.0 GiB |
   | Avg memory | 2.5 GiB |
   | CPU user | 1194.9s |
   | CPU sys | 30.6s |
   | Peak spill | 0 B |
   
   
   </details>
   
   </details>
   
   <details><summary>arrow&#95;writer — shard 4/4</summary>
   
   **Node:** gk3-benchmark-cluster-nap-101n84r4-963d8389-zdwp
   
   **Instance:** c4a-highmem-16 (12 vCPU / 65 GiB)
   
   **uname:**
   
   ```text
   Linux bench-c6065966059-3181-bg7mv 6.12.94+ #1 SMP Fri Aug 21 08:00:16 UTC 
2026 aarch64 GNU/Linux
   ```
   
   **BENCH_COMMAND:**
   
   ```sh
   cargo bench --features=arrow,async,test_common,experimental,object_store 
--bench arrow_writer
   ```
   
   <details><summary>CPU Details (lscpu)</summary>
   
   ```text
   Architecture:                            aarch64
   CPU op-mode(s):                          64-bit
   Byte Order:                              Little Endian
   CPU(s):                                  16
   On-line CPU(s) list:                     0-15
   Vendor ID:                               ARM
   Model name:                              Neoverse-V2
   Model:                                   1
   Thread(s) per core:                      1
   Core(s) per cluster:                     16
   Socket(s):                               -
   Cluster(s):                              1
   Stepping:                                r0p1
   BogoMIPS:                                2000.00
   Flags:                                   fp asimd evtstrm aes pmull sha1 
sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 
sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm sb paca pacg dcpodp sve2 
sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm 
bf16 dgh rng bti
   L1d cache:                               1 MiB (16 instances)
   L1i cache:                               1 MiB (16 instances)
   L2 cache:                                32 MiB (16 instances)
   L3 cache:                                80 MiB (1 instance)
   NUMA node(s):                            1
   NUMA node0 CPU(s):                       0-15
   Vulnerability Gather data sampling:      Not affected
   Vulnerability Indirect target selection: Not affected
   Vulnerability Itlb multihit:             Not affected
   Vulnerability L1tf:                      Not affected
   Vulnerability Mds:                       Not affected
   Vulnerability Meltdown:                  Not affected
   Vulnerability Mmio stale data:           Not affected
   Vulnerability Reg file data sampling:    Not affected
   Vulnerability Retbleed:                  Not affected
   Vulnerability Spec rstack overflow:      Not affected
   Vulnerability Spec store bypass:         Mitigation; Speculative Store 
Bypass disabled via prctl
   Vulnerability Spectre v1:                Mitigation; __user pointer 
sanitization
   Vulnerability Spectre v2:                Mitigation; CSV2, BHB
   Vulnerability Srbds:                     Not affected
   Vulnerability Tsa:                       Not affected
   Vulnerability Tsx async abort:           Not affected
   Vulnerability Vmscape:                   Not affected
   ```
   
   </details>
   
   <details><summary>Resource Usage</summary>
   
   **base (merge-base)**
   | Metric | Value |
   |--------|-------|
   | Wall time | 1020.2s |
   | Peak memory | 2.9 GiB |
   | Avg memory | 2.3 GiB |
   | CPU user | 938.8s |
   | CPU sys | 75.4s |
   | Peak spill | 0 B |
   
   **branch**
   | Metric | Value |
   |--------|-------|
   | Wall time | 980.2s |
   | Peak memory | 3.1 GiB |
   | Avg memory | 2.3 GiB |
   | CPU user | 961.4s |
   | CPU sys | 16.8s |
   | Peak spill | 0 B |
   
   
   </details>
   
   </details>
   
   </details>
   
   ---
   [File an issue](https://github.com/adriangb/datafusion-benchmarking/issues) 
against this benchmark runner
   
   <!-- benchmark-request:6065966059:finish:ca9159f5c5f8c4141b00aa40c1a88788 -->


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