[Bug 232636] New: NFS Server is slow
https://bugzilla.novell.com/show_bug.cgi?id=232636 Summary: NFS Server is slow Product: openSUSE 10.2 Version: RC 5 Platform: 32bit OS/Version: SuSE Other Status: NEW Severity: Normal Priority: P5 - None Component: Network AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: k-epsilon@gmx.de QAContact: qa@suse.de Uploading small files to the NFS-Server is very slow. For example i copied /etc to the server (cp -r /etc /nfs) and monitored the transfer rate with gkrellm which is between 50 kB/s and 100 kB/s. Uploading large files (100MB) gives the expected transfer rate of 10 MB/s. The transfer rate can be enhanced (~5 MB/s) by changing the option "sync" to "async". But the NFS-FAQ does not suggests this option. The used optins are: /var/lib/nfs # more etab /nfs/share 10.0.0.0/24(rw,sync,wdelay,hide,nocrossmnt,secure,no_root_squash,no_all_squash,s ubtree_check,secure_locks,acl,mapping=identity,anonuid=65534,anongid=65534) Server and client have an Intel Network adapter which uses the e100 module. The Client does not use any mount options. SUSE 10.0 on the same machine is much faster. Even copying with scp is above 500 kB/s. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=232636 ------- Comment #1 from richard.bos@xs4all.nl 2007-01-08 13:39 MST ------- Is this bug https://bugzilla.novell.com/show_bug.cgi?id=231234 related? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=232636 chrubis@novell.com changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|bnc-team- |kernel-maintainers@forge.provo.novell.com |screening@forge.provo.novell| |.com | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=232636 lmb@novell.com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |INVALID ------- Comment #2 from lmb@novell.com 2007-01-09 05:42 MST ------- That is not a kernel bug. Mounting filesystems with the sync option is slow because write caches aren't used. If you don't want that, use the async option (as you noted.) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=232636 k-epsilon@gmx.de changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|INVALID | ------- Comment #3 from k-epsilon@gmx.de 2007-01-09 10:41 MST ------- I accept, that the sync option results in a low transfer rate. But SUSE 10.0 on the same machine gives a significant better transfer rate (SUSE 10.0: 2 MB/s, SUSE 10.2 < 100 kB/s). SUSE 10.0 exports the filesystem also with the sync option. Therefore i expected the error in the SUSE 10.2 kernel. NFS is even slower than copying files with scp. Perhaps this report is related to https://bugzilla.novell.com/show_bug.cgi?id=231234 and https://bugzilla.novell.com/show_bug.cgi?id=227645 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=232636 ------- Comment #4 from k-epsilon@gmx.de 2007-01-09 10:48 MST ------- i should mention that the Server has got a Pentium 3 with 800 MHz. To install SUSE 10.2, it was necessary to set the boot option "maxcpus=0". -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=232636 ------- Comment #5 from k-epsilon@gmx.de 2007-01-10 11:57 MST ------- This bug occurs only if the exported filesystem is hdb or hdc. Uploads to hda are up to 2 MB/s (with sync). On hdb is a fresh ext3 and on hdc a fresh xfs filesystem. Perhaps this bug is not a NFS problem, but a filesystem problem. However copying between this filesystems is very fast. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=232636 nfbrown@novell.com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO Info Provider| |k-epsilon@gmx.de ------- Comment #7 from nfbrown@novell.com 2007-01-14 14:45 MST ------- There must be some significant difference between hda and hdb/c. Can you provide more general system information? What model drives? What controllers? cat /etc/fstab cat /proc/mounts cat /etc/exports hdparm -t /dev/hda hdparm -t /dev/hdb hdparm -t /dev/hdc Is there an 'hdd' ?? What sort of device is it? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=232636 ------- Comment #8 from nfbrown@novell.com 2007-02-25 20:31 MST ------- Ping.... Is this still an issue? or can we close this bug? Thanks, -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=232636 nfbrown@novell.com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |RESOLVED Info Provider|k-epsilon@gmx.de | Resolution| |INVALID ------- Comment #9 from nfbrown@novell.com 2007-03-11 20:10 MST ------- Closing bug due to lack of information. If more info becomes available, please re-open. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
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