Date: Tue, 10 Apr 2001 17:39:21 -0700 (PDT) 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/nfs nfs_node.c Message-ID: <200104110039.f3B0dL425541@freefall.freebsd.org>
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peter 2001/04/10 17:39:21 PDT
Modified files:
sys/kern vfs_cache.c
sys/nfs nfs_node.c
Log:
Create debug.hashstat.[raw]nchash and debug.hashstat.[raw]nfsnode to
enable easy access to the hash chain stats. The raw prefixed versions
dump an integer array to userland with the chain lengths. This cheats
and calls it an array of 'struct int' rather than 'int' or sysctl -a
faithfully dumps out the 128K array on an average machine. The non-raw
versions return 4 integers: count, number of chains used, maximum chain
length, and percentage utilization (fixed point, multiplied by 100).
The raw forms are more useful for analyzing the hash distribution, while
the other form can be read easily by humans and stats loggers.
Revision Changes Path
1.55 +81 -1 src/sys/kern/vfs_cache.c
1.46 +80 -1 src/sys/nfs/nfs_node.c
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