From: Sudarsan Mahendran <sudarsanm@google.com>
To: vbabka@suse.cz
Cc: Liam.Howlett@oracle.com, cl@gentwo.org, harry.yoo@oracle.com,
howlett@gmail.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, maple-tree@lists.infradead.org,
rcu@vger.kernel.org, rientjes@google.com,
roman.gushchin@linux.dev, surenb@google.com, urezki@gmail.com
Subject: Re: Benchmarking [PATCH v5 00/14] SLUB percpu sheaves
Date: Fri, 12 Sep 2025 17:09:35 -0700 [thread overview]
Message-ID: <20250913000935.1021068-1-sudarsanm@google.com> (raw)
In-Reply-To: <20250723-slub-percpu-caches-v5-0-b792cd830f5d@suse.cz>
Hi Vlastimil,
I ported this patch series on top of v6.17 and ran
some benchmarks: will-it-scale, hackbench, redis,
unixbench and kernbench. I ran the benchmarks
on Intel Granite Rapids (480 cores), AMD Turin (512 cores)
and ARM (80 cores)
Summary of the results:
- Significant change (meaning >10% difference
between base and experiment) on will-it-scale
tests in AMD.
- No significant change on other benchmarks ran.
Summary of AMD will-it-scale test changes:
Number of runs : 15
Direction : + is good
| | MIN | MAX | MEAN | MEDIAN | STDDEV |
|:-----------|:-----------|:-----------|:-----------|:-----------|:-----------|
| brk1_8_processes
| BASE | 7,667,220 | 7,705,767 | 7,682,782 | 7,676,211 | 12,733 |
| TEST | 9,477,395 | 10,053,058 | 9,878,753 | 9,959,360 | 182,014 |
| % | +23.61% | +30.46% | +28.58% | +29.74% | +1,329.46% |
| brk1_8_threads
| BASE | 1,838,468 | 1,890,873 | 1,864,473 | 1,864,875 | 18,406 |
| TEST | 1,464,917 | 1,668,207 | 1,608,345 | 1,654,578 | 70,558 |
| % | -20.32% | -11.78% | -13.74% | -11.28% | +283.34% |
| brk1_128_processes
| BASE | 65,018,211 | 65,603,366 | 65,285,348 | 65,103,197 | 232,885 |
| TEST | 51,287,801 | 52,161,228 | 51,647,807 | 51,509,505 | 277,326 |
| % | -21.12% | -20.49% | -20.89% | -20.88% | +19.08% |
| brk1_256_processes
| BASE | 15,186,881 | 15,239,120 | 15,210,265 | 15,205,809 | 15,850 |
| TEST | 20,478,924 | 23,936,204 | 22,754,698 | 22,771,320 | 1,255,974 |
| % | +34.85% | +57.07% | +49.60% | +49.75% | +7,823.72% |
| brk1_384_processes
| BASE | 11,587,076 | 11,851,775 | 11,765,869 | 11,806,007 | 73,736 |
| TEST | 25,464,757 | 29,176,818 | 26,695,946 | 26,563,116 | 1,012,563 |
| % | +119.77% | +146.18% | +126.89% | +125.00% | +1,273.23% |
| brk1_512_processes
| BASE | 14,410,293 | 14,891,082 | 14,775,209 | 14,793,142 | 114,384 |
| TEST | 22,918,195 | 29,648,177 | 25,204,321 | 25,128,471 | 1,604,037 |
| % | +59.04% | +99.10% | +70.59% | +69.87% | +1,302.32% |
| mmap1_8_processes
| BASE | 3,164,411 | 3,170,585 | 3,167,590 | 3,167,692 | 2,436 |
| TEST | 3,516,242 | 3,756,209 | 3,684,585 | 3,698,731 | 68,659 |
| % | +11.12% | +18.47% | +16.32% | +16.76% | +2,718.28% |
| mmap1_8_threads
| BASE | 627,817 | 632,702 | 630,554 | 629,281 | 1,764 |
| TEST | 541,202 | 554,097 | 549,104 | 549,896 | 4,257 |
| % | -13.80% | -12.42% | -12.92% | -12.62% | +141.34% |
| mmap1_128_processes
| BASE | 30,303,429 | 30,736,686 | 30,466,107 | 30,343,821 | 174,985 |
| TEST | 9,749,426 | 9,893,331 | 9,823,701 | 9,857,157 | 52,125 |
| % | -67.83% | -67.81% | -67.76% | -67.52% | -70.21% |
| mmap1_256_processes
| BASE | 7,496,765 | 7,546,703 | 7,528,379 | 7,543,246 | 21,465 |
| TEST | 10,868,119 | 16,947,857 | 12,695,418 | 11,608,083 | 2,157,787 |
| % | +44.97% | +124.57% | +68.63% | +53.89% | +9,952.34% |
| mmap1_384_processes
| BASE | 5,629,206 | 5,856,927 | 5,758,347 | 5,733,892 | 85,930 |
| TEST | 12,053,514 | 13,635,555 | 12,966,975 | 13,283,450 | 606,325 |
| % | +114.12% | +135.49% | +112.89% | +104.26% | +2,855.57% |
| mmap1_512_processes
| BASE | 6,959,199 | 6,996,383 | 6,975,912 | 6,974,353 | 15,446 |
| TEST | 10,197,814 | 12,029,690 | 11,458,180 | 11,381,726 | 534,690 |
| % | +46.54% | +71.94% | +64.25% | +63.19% | +3,361.67% |
| tlb_flush2_384_threads
| BASE | 2,953,477 | 3,021,464 | 3,003,512 | 3,014,264 | 25,525 |
| TEST | 2,231,417 | 2,526,876 | 2,408,368 | 2,411,121 | 115,773 |
| % | -24.45% | -16.37% | -19.81% | -20.01% | +353.55% |
| tlb_flush2_512_threads
| BASE | 2,499,486 | 2,542,966 | 2,520,278 | 2,530,049 | 17,161 |
| TEST | 1,707,641 | 1,714,524 | 1,708,951 | 1,707,713 | 1,877 |
| % | -31.68% | -32.58% | -32.19% | -32.50% | -89.06% |
| mmap2_128_processes
| BASE | 29,754,984 | 30,313,146 | 30,010,106 | 29,897,731 | 218,812 |
| TEST | 9,688,640 | 9,750,688 | 9,710,137 | 9,696,830 | 23,428 |
| % | -67.44% | -67.83% | -67.64% | -67.57% | -89.29% |
| mmap2_256_processes
| BASE | 7,483,929 | 7,532,461 | 7,491,876 | 7,489,398 | 11,134 |
| TEST | 11,580,023 | 16,508,551 | 15,337,145 | 15,943,608 | 1,489,489 |
| % | +54.73% | +119.17% | +104.72% | +112.88% | +13,276.75%|
| mmap2_384_processes
| BASE | 5,725,503 | 5,826,364 | 5,763,341 | 5,765,247 | 29,674 |
| TEST | 11,682,353 | 13,720,566 | 12,269,665 | 11,776,228 | 877,060 |
| % | +104.04% | +135.49% | +112.89% | +104.26% | +2,855.57% |
| mmap2_512_processes
| BASE | 6,959,199 | 6,996,383 | 6,975,912 | 6,974,353 | 15,446 |
| TEST | 10,197,814 | 12,029,690 | 11,458,180 | 11,381,726 | 534,690 |
| % | +46.54% | +71.94% | +64.25% | +63.19% | +3,361.67% |
next prev parent reply other threads:[~2025-09-13 0:09 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-23 13:34 Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 01/14] slab: add opt-in caching layer of " Vlastimil Babka
2025-08-18 10:09 ` Harry Yoo
2025-08-26 8:03 ` Vlastimil Babka
2025-08-19 4:19 ` Suren Baghdasaryan
2025-08-26 8:51 ` Vlastimil Babka
2025-09-13 14:35 ` Mateusz Guzik
2025-09-13 20:32 ` Vlastimil Babka
2025-09-14 2:22 ` Hillf Danton
2025-09-14 20:24 ` Vlastimil Babka
2025-09-15 0:11 ` Hillf Danton
2025-09-15 7:21 ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 02/14] slab: add sheaf support for batching kfree_rcu() operations Vlastimil Babka
2025-07-23 16:39 ` Uladzislau Rezki
2025-07-24 14:30 ` Vlastimil Babka
2025-07-24 17:36 ` Uladzislau Rezki
2025-07-23 13:34 ` [PATCH v5 03/14] slab: sheaf prefilling for guaranteed allocations Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 04/14] slab: determine barn status racily outside of lock Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 05/14] tools: Add testing support for changes to rcu and slab for sheaves Vlastimil Babka
2025-08-22 16:28 ` Suren Baghdasaryan
2025-08-26 9:32 ` Vlastimil Babka
2025-08-27 0:19 ` Suren Baghdasaryan
2025-07-23 13:34 ` [PATCH v5 06/14] tools: Add sheaves support to testing infrastructure Vlastimil Babka
2025-08-22 16:56 ` Suren Baghdasaryan
2025-08-26 9:59 ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 07/14] maple_tree: use percpu sheaves for maple_node_cache Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 08/14] mm, vma: use percpu sheaves for vm_area_struct cache Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 09/14] mm, slub: skip percpu sheaves for remote object freeing Vlastimil Babka
2025-08-25 5:22 ` Harry Yoo
2025-08-26 10:11 ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 10/14] mm, slab: allow NUMA restricted allocations to use percpu sheaves Vlastimil Babka
2025-08-22 19:58 ` Suren Baghdasaryan
2025-08-25 6:52 ` Harry Yoo
2025-08-26 10:49 ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 11/14] testing/radix-tree/maple: Increase readers and reduce delay for faster machines Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 12/14] maple_tree: Sheaf conversion Vlastimil Babka
2025-08-22 20:18 ` Suren Baghdasaryan
2025-08-26 14:22 ` Liam R. Howlett
2025-08-27 2:07 ` Suren Baghdasaryan
2025-08-28 14:27 ` Liam R. Howlett
2025-07-23 13:34 ` [PATCH v5 13/14] maple_tree: Add single node allocation support to maple state Vlastimil Babka
2025-08-22 20:25 ` Suren Baghdasaryan
2025-08-26 15:10 ` Liam R. Howlett
2025-08-27 2:03 ` Suren Baghdasaryan
2025-07-23 13:34 ` [PATCH v5 14/14] maple_tree: Convert forking to use the sheaf interface Vlastimil Babka
2025-08-22 20:29 ` Suren Baghdasaryan
2025-08-15 22:53 ` [PATCH v5 00/14] SLUB percpu sheaves Sudarsan Mahendran
2025-08-16 8:05 ` Harry Yoo
[not found] ` <CAA9mObAiQbAYvzhW---VoqDA6Zsb152p5ePMvbco0xgwyvaB2Q@mail.gmail.com>
2025-08-16 18:31 ` Vlastimil Babka
2025-08-16 18:33 ` Vlastimil Babka
2025-08-17 4:28 ` Sudarsan Mahendran
2025-09-13 0:09 ` Sudarsan Mahendran [this message]
2025-09-15 7:51 ` Benchmarking " Jan Engelhardt
2025-09-15 12:13 ` Paul E. McKenney
2025-09-15 15:22 ` Vlastimil Babka
2025-09-16 17:09 ` Suren Baghdasaryan
2025-09-17 5:19 ` Uladzislau Rezki
2025-09-17 16:14 ` Suren Baghdasaryan
2025-09-17 23:59 ` Suren Baghdasaryan
2025-09-18 11:50 ` Uladzislau Rezki
2025-09-18 15:29 ` Liam R. Howlett
2025-09-19 15:07 ` Uladzislau Rezki
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