adriangbot commented on PR #11525: URL: https://github.com/apache/arrow-rs/pull/11525#issuecomment-6128950402
🤖 Benchmark completed (GKE) | [trigger](https://github.com/apache/arrow-rs/pull/11525#issuecomment-6128646830) **Target:** cast_decimal Comparing unary-move-closure (09040573fc300c0c8a00d5bb815a9f3cad5f9e87) to 01b1275 (merge-base) [diff](https://github.com/apache/arrow-rs/compare/01b1275aab90c033da3f64f5edbfb4f061606cae..09040573fc300c0c8a00d5bb815a9f3cad5f9e87) <details><summary>Run configuration</summary> ```yaml run benchmark cast_decimal env: BENCH_FILTER: decimal_downscale shards: 1 ``` </details> <details><summary>Details</summary> ``` group base changed ----- ---- ------- decimal_downscale/decimal128 (18, 6) -> (18, 2) 18 digits/mixed_nulls/safe 1.07 51.7±0.15µs 151.2 MElem/sec 1.00 48.2±0.02µs 162.1 MElem/sec decimal_downscale/decimal128 (18, 6) -> (18, 2) 18 digits/no_nulls/safe 1.07 51.7±0.05µs 151.1 MElem/sec 1.00 48.2±0.03µs 162.0 MElem/sec decimal_downscale/decimal128 (38, 10) -> (30, 2) 30 digits fallible/mixed_nulls/safe 1.01 97.9±0.06µs 79.8 MElem/sec 1.00 97.2±0.04µs 80.4 MElem/sec decimal_downscale/decimal128 (38, 10) -> (30, 2) 30 digits fallible/mixed_nulls/strict 1.00 107.7±0.07µs 72.6 MElem/sec 1.00 108.1±0.04µs 72.2 MElem/sec decimal_downscale/decimal128 (38, 10) -> (30, 2) 30 digits fallible/no_nulls/safe 1.00 101.1±0.07µs 77.3 MElem/sec 1.00 101.5±0.10µs 77.0 MElem/sec decimal_downscale/decimal128 (38, 10) -> (30, 2) 30 digits fallible/no_nulls/strict 1.00 169.4±0.40µs 46.1 MElem/sec 1.00 169.9±0.39µs 46.0 MElem/sec decimal_downscale/decimal128 (38, 10) -> (38, 2) 15 digits/mixed_nulls/safe 1.15 49.6±0.24µs 157.6 MElem/sec 1.00 43.0±0.10µs 181.7 MElem/sec decimal_downscale/decimal128 (38, 10) -> (38, 2) 15 digits/no_nulls/safe 1.15 49.4±0.18µs 158.2 MElem/sec 1.00 42.9±0.03µs 181.9 MElem/sec decimal_downscale/decimal128 (38, 10) -> (38, 2) 38 digits/mixed_nulls/safe 1.00 114.7±0.03µs 68.1 MElem/sec 1.00 114.8±0.05µs 68.1 MElem/sec decimal_downscale/decimal128 (38, 10) -> (38, 2) 38 digits/no_nulls/safe 1.00 114.7±0.04µs 68.1 MElem/sec 1.01 115.5±0.20µs 67.7 MElem/sec decimal_downscale/decimal128 (38, 20) -> (38, 2) 38 digits/mixed_nulls/safe 1.00 170.1±0.08µs 45.9 MElem/sec 1.00 170.5±0.14µs 45.8 MElem/sec decimal_downscale/decimal128 (38, 20) -> (38, 2) 38 digits/no_nulls/safe 1.00 170.2±0.11µs 45.9 MElem/sec 1.00 170.7±0.10µs 45.8 MElem/sec decimal_downscale/decimal256 (41, 20) -> decimal128(38, 6) 30 digits/mixed_nulls/safe 1.00 500.0±0.28µs 15.6 MElem/sec 1.00 500.5±0.33µs 15.6 MElem/sec decimal_downscale/decimal256 (41, 20) -> decimal128(38, 6) 30 digits/no_nulls/safe 1.00 499.9±0.27µs 15.6 MElem/sec 1.00 500.3±0.38µs 15.6 MElem/sec decimal_downscale/decimal256 (76, 10) -> (76, 2) 38 digits/mixed_nulls/safe 1.02 468.0±1.09µs 16.7 MElem/sec 1.00 459.8±0.55µs 17.0 MElem/sec decimal_downscale/decimal256 (76, 10) -> (76, 2) 38 digits/no_nulls/safe 1.02 467.3±0.77µs 16.7 MElem/sec 1.00 459.9±0.60µs 17.0 MElem/sec decimal_downscale/decimal256 (76, 10) -> (76, 2) 60 digits/mixed_nulls/safe 1.01 751.4±0.61µs 10.4 MElem/sec 1.00 743.2±0.63µs 10.5 MElem/sec decimal_downscale/decimal256 (76, 10) -> (76, 2) 60 digits/no_nulls/safe 1.02 754.6±2.16µs 10.4 MElem/sec 1.00 743.0±0.61µs 10.5 MElem/sec decimal_downscale/decimal256 (76, 20) -> decimal128(38, 6) 48 digits fallible/mixed_nulls/safe 1.00 704.0±0.53µs 11.1 MElem/sec 1.00 700.9±0.64µs 11.1 MElem/sec decimal_downscale/decimal256 (76, 20) -> decimal128(38, 6) 48 digits fallible/mixed_nulls/strict 1.00 714.1±1.16µs 10.9 MElem/sec 1.01 720.8±1.44µs 10.8 MElem/sec decimal_downscale/decimal256 (76, 20) -> decimal128(38, 6) 48 digits fallible/no_nulls/safe 1.00 781.3±0.63µs 10.0 MElem/sec 1.00 777.8±0.56µs 10.0 MElem/sec decimal_downscale/decimal256 (76, 20) -> decimal128(38, 6) 48 digits fallible/no_nulls/strict 1.00 792.7±1.49µs 9.9 MElem/sec 1.01 801.0±2.20µs 9.8 MElem/sec decimal_downscale/decimal256 (76, 40) -> decimal128(38, 6) 42 digits fallible/mixed_nulls/safe 1.01 632.8±1.30µs 12.3 MElem/sec 1.00 628.0±1.21µs 12.4 MElem/sec decimal_downscale/decimal256 (76, 40) -> decimal128(38, 6) 42 digits fallible/mixed_nulls/strict 1.01 651.4±1.77µs 12.0 MElem/sec 1.00 646.6±1.90µs 12.1 MElem/sec decimal_downscale/decimal256 (76, 40) -> decimal128(38, 6) 42 digits fallible/no_nulls/safe 1.01 702.4±1.45µs 11.1 MElem/sec 1.00 696.6±1.78µs 11.2 MElem/sec decimal_downscale/decimal256 (76, 40) -> decimal128(38, 6) 42 digits fallible/no_nulls/strict 1.01 723.9±1.57µs 10.8 MElem/sec 1.00 718.4±2.33µs 10.9 MElem/sec decimal_downscale/decimal32 (9, 4) -> (9, 2) 9 digits/mixed_nulls/safe 1.00 30.4±0.02µs 257.1 MElem/sec 1.00 30.4±0.06µs 257.1 MElem/sec decimal_downscale/decimal32 (9, 4) -> (9, 2) 9 digits/no_nulls/safe 1.00 30.4±0.02µs 257.1 MElem/sec 1.00 30.4±0.02µs 257.1 MElem/sec decimal_downscale/decimal64 (18, 6) -> (18, 2) 18 digits/mixed_nulls/safe 1.00 46.7±0.02µs 167.1 MElem/sec 1.00 46.7±0.04µs 167.2 MElem/sec decimal_downscale/decimal64 (18, 6) -> (18, 2) 18 digits/no_nulls/safe 1.00 46.7±0.02µs 167.1 MElem/sec 1.00 46.7±0.02µs 167.3 MElem/sec decimal_downscale_small/decimal128 (38, 20) -> (38, 2) 38 digits/1/no_nulls/safe 1.00 165.1±1.16ns 5.8 MElem/sec 1.02 168.0±2.82ns 5.7 MElem/sec decimal_downscale_small/decimal128 (38, 20) -> (38, 2) 38 digits/128/no_nulls/safe 1.00 2.7±0.00µs 45.2 MElem/sec 1.02 2.8±0.00µs 44.4 MElem/sec decimal_downscale_small/decimal128 (38, 20) -> (38, 2) 38 digits/16/no_nulls/safe 1.00 469.9±2.37ns 32.5 MElem/sec 1.00 471.8±2.41ns 32.3 MElem/sec decimal_downscale_small/decimal256 (41, 20) -> decimal128(38, 6) 30 digits/1/no_nulls/safe 1.01 231.9±1.37ns 4.1 MElem/sec 1.00 228.5±1.88ns 4.2 MElem/sec decimal_downscale_small/decimal256 (41, 20) -> decimal128(38, 6) 30 digits/128/no_nulls/safe 1.00 7.0±0.01µs 17.3 MElem/sec 1.01 7.1±0.01µs 17.2 MElem/sec decimal_downscale_small/decimal256 (41, 20) -> decimal128(38, 6) 30 digits/16/no_nulls/safe 1.00 1015.1±1.61ns 15.0 MElem/sec 1.00 1017.2±2.06ns 15.0 MElem/sec decimal_downscale_small/decimal256 (76, 20) -> decimal128(38, 6) 48 digits/1/no_nulls/safe 1.02 334.8±4.71ns 2.8 MElem/sec 1.00 327.1±5.32ns 2.9 MElem/sec decimal_downscale_small/decimal256 (76, 20) -> decimal128(38, 6) 48 digits/128/no_nulls/safe 1.01 11.1±0.01µs 11.0 MElem/sec 1.00 11.0±0.01µs 11.1 MElem/sec decimal_downscale_small/decimal256 (76, 20) -> decimal128(38, 6) 48 digits/16/no_nulls/safe 1.01 1642.9±1.33ns 9.3 MElem/sec 1.00 1627.6±4.88ns 9.4 MElem/sec ``` </details> <details><summary>Per-runner information</summary> <details><summary>cast_decimal — shard 1/1</summary> **Node:** gk3-benchmark-cluster-nap-fx4bmwrn-863167c5-b88g **Instance:** c4a-highcpu-48 (12 vCPU / 65 GiB) **uname:** ```text Linux bench-c6128646830-3342-lrcm4 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 cast_decimal ``` <details><summary>CPU Details (lscpu)</summary> ```text Architecture: aarch64 CPU op-mode(s): 64-bit Byte Order: Little Endian CPU(s): 48 On-line CPU(s) list: 0-47 Vendor ID: ARM Model name: Neoverse-V2 Model: 1 Thread(s) per core: 1 Core(s) per cluster: 48 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: 3 MiB (48 instances) L1i cache: 3 MiB (48 instances) L2 cache: 96 MiB (48 instances) L3 cache: 80 MiB (1 instance) NUMA node(s): 1 NUMA node0 CPU(s): 0-47 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 | 405.1s | | Peak memory | 14.5 MiB | | Avg memory | 13.8 MiB | | CPU user | 399.2s | | CPU sys | 0.0s | | Peak spill | 0 B | **branch** | Metric | Value | |--------|-------| | Wall time | 405.1s | | Peak memory | 14.7 MiB | | Avg memory | 14.0 MiB | | CPU user | 402.5s | | CPU sys | 0.0s | | Peak spill | 0 B | </details> </details> </details> --- [File an issue](https://github.com/adriangb/datafusion-benchmarking/issues) against 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