tree 3e6075ef7bc81bd6bd0e8c2178c6119105b2efe4
parent 41f63f39975533eb4fa2a8ef6c3ca171ff8c2b50
author Megan Batty <mgnb@fuchsia.infra.roller.google.com> 1715103502 +0000
committer Copybara-Service <copybara-worker@google.com> 1715103619 -0700

[roll] Roll fuchsia [driver_runtime] Add benchmarks of varying allocs

Adds benchmarks of allocating a large object into an arena and then lots
of small ones, which currently causes the initial arena allocation to be
left empty.

 Mean  Median (ns) Test case
 1403      83      Arena/AllocLargeThenSmall/4096bytes.one_large_block
 4803    2250      Arena/AllocLargeThenSmall/4096bytes.fifty_small_blocks
10562    9000      Arena/AllocLargeThenSmall/8192bytes.one_large_block
 2261    2250      Arena/AllocLargeThenSmall/8192bytes.fifty_small_blocks
14198   11167      Arena/AllocLargeThenSmall/16384bytes.one_large_block
14524   11750      Arena/AllocLargeThenSmall/16384bytes.fifty_small_blocks
15342   11646      Arena/AllocLargeThenSmall/32768bytes.one_large_block
13627   11771      Arena/AllocLargeThenSmall/32768bytes.fifty_small_blocks
14923   12312      Arena/AllocLargeThenSmall/65536bytes.one_large_block
13067   11500      Arena/AllocLargeThenSmall/65536bytes.fifty_small_blocks

Original-Bug: b/336852954
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1041102
Original-Revision: 6db5a9074ae2cf0798c8f99bc6bdfc3d748f0b84
GitOrigin-RevId: fed5d8b860d8dd1f9ab8785ccfe2212b423757f4
Change-Id: Idb4f98ca0f942272fae01d75d2da7918ac4d3ec5