* [NFS][PATCH] zerocopy NFS
@ 2002-04-08 13:29 Hirokazu Takahashi
0 siblings, 0 replies; 2+ messages in thread
From: Hirokazu Takahashi @ 2002-04-08 13:29 UTC (permalink / raw)
To: nfs; +Cc: linux-kernel
Hello
I'm tuning knfsd and I implemented zerocopy knfsd.
Everyone knows knfsd copies file data many times,
so I tried to reduce the copies.
nfsd_read() doesn't copy filedata anymore.
This works pretty fine and performance is improved.
Following patches patches are against linux 2.5.7
ftp:/ftp.valinux.co.jp/pub/people/taka/tune/2.5.7/va01-knfsd-zerocopy-vfsread-2.5.7.patch
ftp:/ftp.valinux.co.jp/pub/people/taka/tune/2.5.7/va02-kmap-multplepages-2.5.7.patch
I also have patches against linux 2.4.18
ftp:/ftp.valinux.co.jp/pub/people/taka/tune/2.4.18/va01-knfsd-zerocopy-vfsread-2.4.18.patch
ftp:/ftp.valinux.co.jp/pub/people/taka/tune/2.4.18/va02-kmap-multplepages-2.4.18.patch
Now I'm designing new mechanism to send pagecache directly
using sendpage.
I'm waiting for your comments.
Regards,
Hirokazu Takahashi
VP Engineering Dept.
VA Linux Systems Japan
_______________________________________________
NFS maillist - NFS@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nfs
^ permalink raw reply [flat|nested] 2+ messages in thread
* [NFS][PATCH] zerocopy NFS
@ 2002-04-08 13:29 Hirokazu Takahashi
0 siblings, 0 replies; 2+ messages in thread
From: Hirokazu Takahashi @ 2002-04-08 13:29 UTC (permalink / raw)
To: nfs; +Cc: linux-kernel
Hello
I'm tuning knfsd and I implemented zerocopy knfsd.
Everyone knows knfsd copies file data many times,
so I tried to reduce the copies.
nfsd_read() doesn't copy filedata anymore.
This works pretty fine and performance is improved.
Following patches patches are against linux 2.5.7
ftp:/ftp.valinux.co.jp/pub/people/taka/tune/2.5.7/va01-knfsd-zerocopy-vfsread-2.5.7.patch
ftp:/ftp.valinux.co.jp/pub/people/taka/tune/2.5.7/va02-kmap-multplepages-2.5.7.patch
I also have patches against linux 2.4.18
ftp:/ftp.valinux.co.jp/pub/people/taka/tune/2.4.18/va01-knfsd-zerocopy-vfsread-2.4.18.patch
ftp:/ftp.valinux.co.jp/pub/people/taka/tune/2.4.18/va02-kmap-multplepages-2.4.18.patch
Now I'm designing new mechanism to send pagecache directly
using sendpage.
I'm waiting for your comments.
Regards,
Hirokazu Takahashi
VP Engineering Dept.
VA Linux Systems Japan
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2002-04-08 13:28 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2002-04-08 13:29 [NFS][PATCH] zerocopy NFS Hirokazu Takahashi
-- strict thread matches above, loose matches on Subject: below --
2002-04-08 13:29 Hirokazu Takahashi
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.