adriangbot commented on PR #27051:
URL: https://github.com/apache/datafusion/pull/27051#issuecomment-6608138028

   🤖 Benchmark completed (GKE) | 
[trigger](https://github.com/apache/datafusion/pull/27051#issuecomment-6607439926)
   
   **Instance:** `c4a-highmem-16` (12 vCPU / 65 GiB)
   
   Comparing 4653896c9a2174492c86651ae5cf28172795f28b 
(4653896c9a2174492c86651ae5cf28172795f28b) to 
32bd81fb226ccf1ae5df67ff340d77baa3e73668 
[diff](https://github.com/apache/datafusion/compare/32bd81fb226ccf1ae5df67ff340d77baa3e73668..4653896c9a2174492c86651ae5cf28172795f28b)
   
   <details><summary>Run configuration</summary>
   
   ```yaml
   run benchmark dictionary_group_values
   baseline:
     ref: "32bd81fb226ccf1ae5df67ff340d77baa3e73668"
   changed:
     ref: "4653896c9a2174492c86651ae5cf28172795f28b"
   ```
   
   </details>
   
   <details><summary>CPU Details (lscpu)</summary>
   
   ```
   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>Details</summary>
   <p>
   
   ```
   group                                                                        
     HEAD                                    
rich-T-kid_dictionary-aggregate-emission
   -----                                                                        
     ----                                    
----------------------------------------
   dict_intern_emit/intern_emit/size_65536_card_1000_null_0.00                  
     1.00    488.6±7.00µs 127.9 MElem/sec    1.00    488.5±6.68µs 127.9 
MElem/sec
   dict_intern_emit/intern_emit/size_65536_card_20_null_0.00                    
     1.00    422.3±4.42µs 148.0 MElem/sec    1.00    420.6±7.17µs 148.6 
MElem/sec
   dict_intern_emit/intern_emit/size_65536_card_300_null_0.00                   
     1.00    448.9±5.33µs 139.2 MElem/sec    1.01    452.4±6.30µs 138.2 
MElem/sec
   dict_intern_emit/intern_emit/size_65536_card_65536_null_0.00                 
     1.00      6.1±0.04ms 10.3 MElem/sec     1.09      6.6±0.06ms  9.4 MElem/sec
   dict_intern_emit/intern_emit/size_65536_card_75_null_0.00                    
     1.01    441.8±6.30µs 141.5 MElem/sec    1.00    439.0±5.34µs 142.4 
MElem/sec
   dict_intern_emit/intern_emit/size_8192_card_1000_null_0.00                   
     1.00    114.0±3.75µs 68.5 MElem/sec     1.00    114.2±1.52µs 68.4 MElem/sec
   dict_intern_emit/intern_emit/size_8192_card_20_null_0.00                     
     1.00     56.4±1.01µs 138.6 MElem/sec    1.01     57.0±1.30µs 137.1 
MElem/sec
   dict_intern_emit/intern_emit/size_8192_card_300_null_0.00                    
     1.00     72.7±0.88µs 107.5 MElem/sec    1.01     73.6±1.66µs 106.1 
MElem/sec
   dict_intern_emit/intern_emit/size_8192_card_75_null_0.00                     
     1.02     62.0±1.24µs 126.0 MElem/sec    1.00     61.0±1.41µs 128.1 
MElem/sec
   dict_intern_emit/intern_emit/size_8192_card_8192_null_0.00                   
     1.00    527.8±2.73µs 14.8 MElem/sec     1.06   557.2±63.62µs 14.0 MElem/sec
   
dict_repeated_intern_emit/repeated_intern_emit/size_65536_card_1000_null_0.10   
  1.01      2.3±0.01ms 106.7 MElem/sec    1.00      2.3±0.02ms 107.6 MElem/sec
   dict_repeated_intern_emit/repeated_intern_emit/size_65536_card_20_null_0.10  
     1.01      2.2±0.00ms 115.4 MElem/sec    1.00      2.2±0.01ms 116.0 
MElem/sec
   dict_repeated_intern_emit/repeated_intern_emit/size_65536_card_300_null_0.10 
     1.01      2.3±0.01ms 110.4 MElem/sec    1.00      2.2±0.01ms 111.4 
MElem/sec
   
dict_repeated_intern_emit/repeated_intern_emit/size_65536_card_65536_null_0.10  
  1.00     20.9±0.79ms 12.0 MElem/sec     1.03     21.6±0.58ms 11.6 MElem/sec
   dict_repeated_intern_emit/repeated_intern_emit/size_65536_card_75_null_0.10  
     1.00      2.2±0.01ms 112.2 MElem/sec    1.00      2.2±0.01ms 111.9 
MElem/sec
   dict_repeated_intern_emit/repeated_intern_emit/size_8192_card_1000_null_0.10 
     1.03    398.7±4.23µs 78.4 MElem/sec     1.00    386.7±4.00µs 80.8 MElem/sec
   dict_repeated_intern_emit/repeated_intern_emit/size_8192_card_20_null_0.10   
     1.00    249.5±2.49µs 125.3 MElem/sec    1.02    253.2±1.79µs 123.4 
MElem/sec
   dict_repeated_intern_emit/repeated_intern_emit/size_8192_card_300_null_0.10  
     1.01    295.9±3.57µs 105.6 MElem/sec    1.00    294.0±1.89µs 106.3 
MElem/sec
   dict_repeated_intern_emit/repeated_intern_emit/size_8192_card_75_null_0.10   
     1.09  293.0±266.43µs 106.6 MElem/sec    1.00    267.7±1.84µs 116.8 
MElem/sec
   dict_repeated_intern_emit/repeated_intern_emit/size_8192_card_8192_null_0.10 
     1.10  1345.9±247.22µs 23.2 MElem/sec    1.00   1219.1±9.07µs 25.6 MElem/sec
   dict_scalar_append_equal/scalar_append_equal/size_65536_card_1000_null_0.10  
     1.04   1358.6±4.67µs 46.0 MElem/sec     1.00   1302.1±3.38µs 48.0 MElem/sec
   dict_scalar_append_equal/scalar_append_equal/size_65536_card_20_null_0.10    
     1.06   1262.8±3.90µs 49.5 MElem/sec     1.00   1191.5±3.92µs 52.5 MElem/sec
   dict_scalar_append_equal/scalar_append_equal/size_65536_card_300_null_0.10   
     1.01   1269.0±5.51µs 49.3 MElem/sec     1.00   1253.0±5.64µs 49.9 MElem/sec
   dict_scalar_append_equal/scalar_append_equal/size_65536_card_65536_null_0.10 
     1.14      8.1±0.06ms  7.7 MElem/sec     1.00      7.1±0.07ms  8.8 MElem/sec
   dict_scalar_append_equal/scalar_append_equal/size_65536_card_75_null_0.10    
     1.07   1287.5±4.44µs 48.5 MElem/sec     1.00   1206.8±3.33µs 51.8 MElem/sec
   dict_shared_values_arc/shared_values_arc/size_8192_card_100000               
     1.00     22.0±0.68ms 11.4 MElem/sec     1.11     24.4±1.04ms 10.3 MElem/sec
   dict_shared_values_arc/shared_values_arc/size_8192_card_32768                
     1.00      8.1±0.04ms 31.0 MElem/sec     1.02      8.2±0.08ms 30.4 MElem/sec
   dict_shared_values_arc/shared_values_arc/size_8192_card_500000               
     1.00     81.3±2.95ms  3.1 MElem/sec     1.13     92.0±3.91ms  2.7 MElem/sec
   dict_shared_values_arc/shared_values_arc/size_8192_card_65536                
     1.00     15.8±0.65ms 15.8 MElem/sec     1.01     16.0±0.43ms 15.7 MElem/sec
   dict_shared_values_arc/shared_values_arc/size_8192_card_8192                 
     1.00      2.8±0.02ms 87.7 MElem/sec     1.03      2.9±0.02ms 85.6 MElem/sec
   dict_take_n/take_n/size_65536_card_1000_null_0.10                            
     1.00      2.5±0.01ms 101.1 MElem/sec    1.00      2.5±0.01ms 101.3 
MElem/sec
   dict_take_n/take_n/size_65536_card_20_null_0.10                              
     1.00      2.1±0.01ms 119.8 MElem/sec    1.01      2.1±0.01ms 119.0 
MElem/sec
   dict_take_n/take_n/size_65536_card_300_null_0.10                             
     1.00      2.2±0.01ms 111.9 MElem/sec    1.01      2.3±0.01ms 110.8 
MElem/sec
   dict_take_n/take_n/size_65536_card_65536_null_0.10                           
     1.00     27.3±0.42ms  9.2 MElem/sec     1.00     27.4±0.34ms  9.1 MElem/sec
   dict_take_n/take_n/size_65536_card_75_null_0.10                              
     1.00      2.2±0.01ms 113.8 MElem/sec    1.00      2.2±0.01ms 114.1 
MElem/sec
   group_values_emit/dictionary/size_500000_null_0.0                            
                                             1.00     12.1±1.61µs 38.4 GElem/sec
   group_values_emit/dictionary/size_500000_null_0.1                            
                                             1.00     17.4±1.60µs 26.7 GElem/sec
   group_values_emit/dictionary/size_65536_null_0.0                             
                                             1.00      7.3±0.69µs  8.4 GElem/sec
   group_values_emit/dictionary/size_65536_null_0.1                             
                                             1.00      8.1±0.81µs  7.6 GElem/sec
   group_values_emit/dictionary/size_8192_null_0.0                              
                                             1.00   55.8±521.94µs 140.0 
MElem/sec
   group_values_emit/dictionary/size_8192_null_0.1                              
                                             1.00      3.7±5.82µs  2.1 GElem/sec
   group_values_emit/utf8_view/size_500000_null_0.0                             
                                             1.00      5.0±0.46µs 94.0 GElem/sec
   group_values_emit/utf8_view/size_500000_null_0.1                             
                                             1.00      9.2±0.49µs 50.8 GElem/sec
   group_values_emit/utf8_view/size_65536_null_0.0                              
                                             1.00  1912.6±200.73ns 31.9 
GElem/sec
   group_values_emit/utf8_view/size_65536_null_0.1                              
                                             1.00      2.4±0.16µs 25.2 GElem/sec
   group_values_emit/utf8_view/size_8192_null_0.0                               
                                             1.00  736.1±169.29ns 10.4 GElem/sec
   group_values_emit/utf8_view/size_8192_null_0.1                               
                                             1.00  1258.1±174.12ns  6.1 
GElem/sec
   ```
   
   </p>
   </details>
   
   <details><summary>Resource Usage</summary>
   
   **dictionary_group_values — base (merge-base)**
   | Metric | Value |
   |--------|-------|
   | Wall time | 700.2s |
   | Peak memory | 900.9 MiB |
   | Avg memory | 59.3 MiB |
   | CPU user | 414.9s |
   | CPU sys | 23.3s |
   | Peak spill | 0 B |
   
   **dictionary_group_values — branch**
   | Metric | Value |
   |--------|-------|
   | Wall time | 830.2s |
   | Peak memory | 812.7 MiB |
   | Avg memory | 99.3 MiB |
   | CPU user | 566.7s |
   | CPU sys | 33.1s |
   | Peak spill | 0 B |
   
   </details>
   
   
   ---
   [File an issue](https://github.com/adriangb/datafusion-benchmarking/issues) 
against this benchmark runner


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