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Date: Thu, 18 Sep 2008 15:20:48 +0200 From: Peter Zijlstra <a.p.zijlstra@...llo.nl> To: Martin Knoblauch <knobi@...bisoft.de> Cc: Andrew Morton <akpm@...ux-foundation.org>, Greg Banks <gnb@...bourne.sgi.com>, linux-nfs list <linux-nfs@...r.kernel.org>, linux-kernel@...r.kernel.org Subject: Re: [RFC][Resend] Make NFS-Client readahead tunable On Thu, 2008-09-18 at 01:38 -0700, Martin Knoblauch wrote: > I believe Peter wanted to add per bdi stuff for nfs some time ago. Not sure what came out of it. $ mount localhost:/ /mnt/tmp $ grep nfs /proc/$$/mountinfo 21 17 0:17 / /var/lib/nfs/rpc_pipefs rw - rpc_pipefs rpc_pipefs rw 31 13 0:20 / /proc/fs/nfsd rw - nfsd nfsd rw 37 17 0:22 / /mnt/tmp rw - nfs localhost:/ rw,vers=3,rsize=65536,wsize=65536,namlen=255,hard,nointr,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=127.0.0.1,mountvers=3,mountproto=tcp,addr=127.0.0.1 $ ls -la /sys/class/bdi/0\:22/ total 0 drwxr-xr-x 3 root root 0 2008-09-18 15:16 . drwxr-xr-x 21 root root 0 2008-09-18 15:16 .. -rw-r--r-- 1 root root 4096 2008-09-18 15:19 max_ratio -rw-r--r-- 1 root root 4096 2008-09-18 15:19 min_ratio drwxr-xr-x 2 root root 0 2008-09-18 15:19 power -rw-r--r-- 1 root root 4096 2008-09-18 15:19 read_ahead_kb lrwxrwxrwx 1 root root 0 2008-09-18 15:19 subsystem -> ../../bdi -rw-r--r-- 1 root root 4096 2008-09-18 15:19 uevent $ cat /sys/class/bdi/0\:22/read_ahead_kb 960 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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