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Greg Banks fce1456a19 [PATCH] knfsd: make nfsd readahead params cache SMP-friendly ... Make the nfsd read-ahead params cache more SMP-friendly by changing the single global list and lock into a fixed 16-bucket hashtable with per-bucket locks. This reduces spinlock contention in nfsd_read() on read-heavy workloads on multiprocessor servers. Testing was on a 4 CPU 4 NIC Altix using 4 IRIX clients each doing 1K streaming reads at full line rate. The server had 128 nfsd threads, which sizes the RA cache at 256 entries, of which only a handful were used. Flat profiling shows nfsd_read(), including the inlined nfsd_get_raparms(), taking 10.4% of each CPU. This patch drops the contribution from nfsd() to 1.71% for each CPU. Signed-off-by: Greg Banks <gnb@melbourne.sgi.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		19 years ago
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Makefile	…
auth.c	…
export.c	…
lockd.c	…
nfs2acl.c	…
nfs3acl.c	…
nfs3proc.c	[PATCH] knfsd: Prepare knfsd for support of rsize/wsize of up to 1MB, over TCP	19 years ago
nfs3xdr.c	[PATCH] knfsd: Prepare knfsd for support of rsize/wsize of up to 1MB, over TCP	19 years ago
nfs4acl.c	…
nfs4callback.c	…
nfs4idmap.c	…
nfs4proc.c	…
nfs4recover.c	…
nfs4state.c	…
nfs4xdr.c	[PATCH] knfsd: Prepare knfsd for support of rsize/wsize of up to 1MB, over TCP	19 years ago
nfscache.c	…
nfsctl.c	[PATCH] knfsd: Allow max size of NFSd payload to be configured	19 years ago
nfsfh.c	…
nfsproc.c	[PATCH] knfsd: Prepare knfsd for support of rsize/wsize of up to 1MB, over TCP	19 years ago
nfssvc.c	[PATCH] knfsd: Allow max size of NFSd payload to be configured	19 years ago
nfsxdr.c	[PATCH] knfsd: Prepare knfsd for support of rsize/wsize of up to 1MB, over TCP	19 years ago
stats.c	…
vfs.c	[PATCH] knfsd: make nfsd readahead params cache SMP-friendly	19 years ago