--- On Fri, 2/18/11, Kirill Yelizarov <ykir...@yahoo.com> wrote:
> From: Kirill Yelizarov <ykir...@yahoo.com> > Subject: Re: NFS client over udp > To: freebsd-stable@freebsd.org > Date: Friday, February 18, 2011, 5:09 PM > > > --- On Fri, 2/18/11, Jeremy Chadwick <free...@jdc.parodius.com> > wrote: > > > From: Jeremy Chadwick <free...@jdc.parodius.com> > > Subject: Re: NFS client over udp > > To: "Kirill Yelizarov" <ykir...@yahoo.com> > > Cc: freebsd-stable@freebsd.org > > Date: Friday, February 18, 2011, 5:05 PM > > On Fri, Feb 18, 2011 at 05:27:00AM > > -0800, Kirill Yelizarov wrote: > > > I have a reproducible memory leak when using nfs > > client with an old > > > nfs server using udp protocol. I'm running rsync > every > > hour from a > > > mounted nfs volume to an ufs local volume. Each > time > > rsync is running > > > wired memory is increased. Wired memory is rising > when > > rsync is in > > > getblk or biord state. When rsync is complete > memory > > is not freed and > > > lately all memory is in active or wired state > and > > system starts > > > swapping. I didn't see such behavior when client > os > > was RELEASE-8.0. > > > Then i switched to STABLE-8.1 of late summer and > found > > this leak so i > > > upgraded to STABLE-8.2Prerelease and got the > same > > leak. vmstat -m > > > shows nothing big. > > > > > > client version: FreeBSD imap1.***.com > 8.2-PRERELEASE > > FreeBSD > > > 8.2-PRERELEASE #0: Thu Feb 17 13:54:25 MSK 2011 > > > root@imap1.****.com:/usr/obj/usr/src/sys/IMAP1 > > amd64 > > > > > > i tried different mounting options: > > 1 - > > > > > > rw,rsize=32768,wsize=32768,nfsv3,intr,mntudp,rdirplus, > > > readdirsize=65536,noauto,noexec 2 - > > rw,nfsv3,mntudp,noexec > > > > > > i also tried setting -tso -txcsum -rxcsum for > igb > > network card > > > > Is ZFS in use on the system which sees rising wired > > memory? > No, ufs only. I found an old post stating there is a leak with nfs udp client over zfs: http://lists.freebsd.org/pipermail/freebsd-fs/2010-February/007876.html In my case i don't have zfs on server or client but the mount is over udp. Here is top after a day of hourly rsync last pid: 17306; load averages: 0.00, 0.00, 0.00 up 0+22:07:34 19:52:53 53 processes: 1 running, 52 sleeping CPU: % user, % nice, % system, % interrupt, % idle Mem: 12G Active, 1306M Inact, 1609M Wired, 748M Cache, 1641M Buf, 55M Free Swap: 16G Total, 14M Used, 16G Free and mbufs used 8193/1722/9915 mbufs in use (current/cache/total) 8192/1264/9456/25600 mbuf clusters in use (current/cache/total/max) 8192/605 mbuf+clusters out of packet secondary zone in use (current/cache) 0/768/768/12800 4k (page size) jumbo clusters in use (current/cache/total/max) 0/0/0/6400 9k jumbo clusters in use (current/cache/total/max) 0/0/0/3200 16k jumbo clusters in use (current/cache/total/max) 18432K/6030K/24462K bytes allocated to network (current/cache/total) 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) 0/0/0 requests for jumbo clusters denied (4k/9k/16k) 0/0/0 sfbufs in use (current/peak/max) 0 requests for sfbufs denied 0 requests for sfbufs delayed 0 requests for I/O initiated by sendfile 0 calls to protocol drain routines Kirill _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
