git.ipfire.org Git - thirdparty/bind9.git/commit

]> git.ipfire.org Git - thirdparty/bind9.git/commit

projects / thirdparty / bind9.git / commit

author	Tony Finch <fanf@isc.org>
	Thu, 16 Mar 2023 09:46:15 +0000 (09:46 +0000)
committer	Tony Finch <dot@dotat.at>
	Mon, 3 Apr 2023 11:08:05 +0000 (12:08 +0100)
commit	bc2389b8282625d08c44d030769af207d2cce7a8
tree	7d21f565151b63d6f52018560d9e636a2d0b320b	tree \| snapshot
parent	82213a48cfe1703a55ca3c7eec907daf14fecc33	commit \| diff

Add per-thread sharded histograms for heavy loads

Although an `isc_histo_t` is thread-safe, it can suffer
from cache contention under heavy load. To avoid this,
an `isc_histomulti_t` contains a histogram per thread,
so updates are local and low-contention.

lib/isc/histo.c		diff \| blob \| blame \| history
lib/isc/include/isc/histo.h		diff \| blob \| blame \| history
lib/isc/include/isc/tid.h		diff \| blob \| blame \| history
lib/isc/loop.c		diff \| blob \| blame \| history
lib/isc/tid.c		diff \| blob \| blame \| history

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