Igor, thanks for your quick reply.
Am Samstag, 29. Dezember 2012, 02:33:29 schrieb Igor Cicimov: > On Sat, Dec 29, 2012 at 9:06 AM, Mailingliste <m...@bokomoko.de> wrote: [...] > acregmin=n The minimum time in seconds that attributes of a regular > file should be cached before requesting > fresh information from a server. The default is 3 > seconds. > acregmax=n The maximum time in seconds that attributes of a > regular file can be cached before requesting > fresh information from a server. The default is 60 > seconds. > acdirmin=n The minimum time in seconds that attributes of a > directory should be cached before requesting > fresh information from a server. The default is 30 > seconds. > acdirmax=n The maximum time in seconds that attributes of a > directory can be cached before requesting fresh > information from a server. The default is 60 > seconds. actimeo=n Using actimeo sets all of acregmin, acregmax, > acdirmin, and acdirmax to the same value. There > is no default value. > > as you can see the default maximum directory attribute cache time is 60 > seconds which doesn't match with your resoults. For both v3 and v4. But in > v4 there is also: > > noac Disable attribute caching, and force synchronous writes. > This extracts a server perfor- > mance penalty but it allows two different NFS clients > to get reasonable good results when > both clients are actively writing to common > filesystem on the server. > fsc Enable the use of persistent caching to the local > disk using the FS-Cache facility for > the given mount point. > > so are you using maybe fsc option during the mount? Hmm...not that I am aware of: dell:/home on /mnt/net/dell/home type nfs (rw,nosuid,nodev,intr,sloppy,vers=4,addr=192.168.2.23,clientaddr=192.168.2.27) > What happens if you switch to NFS v3? I see no visible change, even when mounting without autofs: root@omjuta:~# mount -o vers=3 dell:/home /mnt/dell root@omjuta:~# ls -l /mnt/dell/ insgesamt 28 drwxr-x--- 83 dorsch dorsch 4096 28. Dez 22:43 dorsch drwxr-xr-x 31 kathrin kathrin 4096 8. Jul 12:22 kathrin drwxr-xr-x 19 2111 2111 4096 21. Dez 2011 kristina drwxr-xr-x 27 marina marina 4096 4. Mär 2012 marina drwxr-xr-x 63 rd rd 4096 28. Dez 12:55 rd drwxrwsr-x 2 1000 users 4096 15. Feb 2010 shared drwxr-xr-x 27 simon simon 4096 2. Okt 2011 simon root@omjuta:~# > Also post the result of: > > # cat /proc/mounts rd@omjuta:~$ cat /proc/mounts rootfs / rootfs rw 0 0 none /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0 none /proc proc rw,nosuid,nodev,noexec,relatime 0 0 none /dev devtmpfs rw,relatime,size=1032652k,nr_inodes=218500,mode=755 0 0 none /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 /dev/disk/by-uuid/6b00db99-d16d-42a5-adfc-ec4af1a268d5 / ext4 rw,noatime,errors=remount-ro,barrier=1,data=ordered 0 0 tmpfs /lib/init/rw tmpfs rw,nosuid,relatime,mode=755 0 0 tmpfs /dev/shm tmpfs rw,nosuid,nodev,relatime 0 0 tmpfs /tmp tmpfs rw,nosuid,nodev,relatime 0 0 rpc_pipefs /var/lib/nfs/rpc_pipefs rpc_pipefs rw,relatime 0 0 fusectl /sys/fs/fuse/connections fusectl rw,relatime 0 0 -hosts /mnt/net autofs rw,relatime,fd=7,pgrp=1220,timeout=60,minproto=5,maxproto=5,indirect 0 0 /etc/auto.sshfs /mnt/sshfs autofs rw,relatime,fd=13,pgrp=1220,timeout=30,minproto=5,maxproto=5,indirect 0 0 -hosts /mnt/net/dell/home autofs rw,relatime,fd=7,pgrp=1220,timeout=60,minproto=5,maxproto=5,offset 0 0 dell:/home/ /mnt/net/dell/home nfs4 rw,nosuid,nodev,relatime,vers=4,rsize=65536,wsize=65536,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=192.168.2.27,minorversion=0,addr=192.168.2.23 0 0 rd@omjuta:~$ > # nfsstat -m root@omjuta:~# nfsstat -m /mnt/net/dell/home from dell:/home/ Flags: rw,nosuid,nodev,relatime,vers=4,rsize=65536,wsize=65536,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=192.168.2.27,minorversion=0,addr=192.168.2.23 root@omjuta:~# > # nfsstat -n -c -v -4 root@omjuta:~# nfsstat -n -c -v 4 Server packet stats: packets udp tcp tcpconn 0 0 0 0 Server rpc stats: calls badcalls badauth badclnt xdrcall 0 0 0 0 0 Server reply cache: hits misses nocache 0 0 0 Server file handle cache: lookup anon ncachedir ncachedir stale 0 0 0 0 0 Client packet stats: packets udp tcp tcpconn 0 0 0 0 Client rpc stats: calls retrans authrefrsh 54 0 0 > # uname -a root@omjuta:~# uname -a Linux omjuta 2.6.32-5-686 #1 SMP Sun Sep 23 09:49:36 UTC 2012 i686 GNU/Linux root@omjuta:~# > > on the client and: > > # nfsstat -s dell:~# nfsstat -s Server rpc stats: calls badcalls badauth badclnt xdrcall 63 0 0 0 0 Server nfs v2: null getattr setattr root lookup readlink 4 100% 0 0% 0 0% 0 0% 0 0% 0 0% read wrcache write create remove rename 0 0% 0 0% 0 0% 0 0% 0 0% 0 0% link symlink mkdir rmdir readdir fsstat 0 0% 0 0% 0 0% 0 0% 0 0% 0 0% Server nfs v3: null getattr setattr lookup access readlink 5 100% 0 0% 0 0% 0 0% 0 0% 0 0% read write create mkdir symlink mknod 0 0% 0 0% 0 0% 0 0% 0 0% 0 0% remove rmdir rename link readdir readdirplus 0 0% 0 0% 0 0% 0 0% 0 0% 0 0% fsstat fsinfo pathconf commit 0 0% 0 0% 0 0% 0 0% Server nfs v4: null compound 2 3% 52 96% Server nfs v4 operations: op0-unused op1-unused op2-future access close commit 0 0% 0 0% 0 0% 4 2% 0 0% 0 0% create delegpurge delegreturn getattr getfh link 0 0% 0 0% 0 0% 50 34% 20 13% 0 0% lock lockt locku lookup lookup_root nverify 0 0% 0 0% 0 0% 18 12% 0 0% 0 0% open openattr open_conf open_dgrd putfh putpubfh 0 0% 0 0% 0 0% 0 0% 50 34% 0 0% putrootfh read readdir readlink remove rename 2 1% 0 0% 2 1% 0 0% 0 0% 0 0% renew restorefh savefh secinfo setattr setcltid 0 0% 0 0% 0 0% 0 0% 0 0% 0 0% setcltidconf verify write rellockowner bc_ctl bind_conn 0 0% 0 0% 0 0% 0 0% 0 0% 0 0% exchange_id create_ses destroy_ses free_stateid getdirdeleg getdevinfo 0 0% 0 0% 0 0% 0 0% 0 0% 0 0% getdevlist layoutcommit layoutget layoutreturn secinfononam sequence 0 0% 0 0% 0 0% 0 0% 0 0% 0 0% set_ssv test_stateid want_deleg destroy_clid reclaim_comp 0 0% 0 0% 0 0% 0 0% 0 0% dell:~# Maybe worth mentioning: I run a backports kernel on the server: dell:~# uname -a Linux dell 2.6.39-bpo.2-686-pae #1 SMP Thu Aug 4 11:02:22 UTC 2011 i686 GNU/Linux dell:~# Thanks, Rainer > > on the server. > > > For reference, what I did on the server side: > > >> [...] -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201212291121.51347...@bokomoko.de
