summaryrefslogtreecommitdiff
path: root/fs/seq_file.c
diff options
context:
space:
mode:
authorAl Viro <viro@zeniv.linux.org.uk>2013-10-20 08:44:39 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2013-10-20 08:44:39 -0400
commitc7314d74fcb089b127ef5753b5263ac8473f33bc (patch)
tree0ca6b0cc8afcc0145d5eeaed90469470e60cf173 /fs/seq_file.c
parent43ae9e3fc70ca0057ae0a24ef5eedff05e3fae06 (diff)
downloadlwn-c7314d74fcb089b127ef5753b5263ac8473f33bc.tar.gz
lwn-c7314d74fcb089b127ef5753b5263ac8473f33bc.zip
nfsd regression since delayed fput()
Background: nfsd v[23] had throughput regression since delayed fput went in; every read or write ends up doing fput() and we get a pair of extra context switches out of that (plus quite a bit of work in queue_work itselfi, apparently). Use of schedule_delayed_work() gives it a chance to accumulate a bit before we do __fput() on all of them. I'm not too happy about that solution, but... on at least one real-world setup it reverts about 10% throughput loss we got from switch to delayed fput. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/seq_file.c')
0 files changed, 0 insertions, 0 deletions