Date: Mon, 19 Mar 2001 18:10:19 -0800 (PST) From: Peter Wemm <peter@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern vfs_cache.c src/sys/sys fnv_hash.h src/sys/nfs nfs_node.c Message-ID: <200103200210.f2K2AJh50183@freefall.freebsd.org>
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peter 2001/03/19 18:10:19 PST
Modified files:
sys/kern vfs_cache.c
sys/sys fnv_hash.h
sys/nfs nfs_node.c
Log:
Use the same API as the example code.
Allow the initial hash value to be passed in, as the examples do.
Incrementally hash in the dvp->v_id (using the official api) rather than
add it. This seems to help power-of-two predictable filename trees
where the filenames repeat on a power-of-two cycle and the directory trees
have power-of-two components in it. The simple add then mask was causing
things like 12000+ entry collision chains while most other entries have
between 0 and 3 entries each. This way seems to improve things.
Revision Changes Path
1.54 +9 -7 src/sys/kern/vfs_cache.c
1.2 +17 -21 src/sys/sys/fnv_hash.h
1.45 +2 -2 src/sys/nfs/nfs_node.c
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