Try setting the cachemode property on the target filesystem. Also verify that the source can pump data through the net at the desired rate if the target is /dev/null.
-r Le 8 janv. 09 à 18:46, gnomad a écrit : > I have just built an opensolaris box (2008.11) as a small fileserver > (6x 1TB drives as RAIDZ2, kernel CIFS) for home media use and I am > noticing an odd behavior copying files to the box. > > My knowledge of monitoring/analysis tools under Solaris is very > limited, and so far I have just been using the System Monitor that > pops up with ctrl-alt-del, and the numbers I am reporting come from > that. > > When copying files (a small number of large files from a Mac to the > Solaris/CIFS server) I initially see network usage of 40-45 MB/s > which is pretty much what I would expect from single spindle disks > over GigE through a SoHo switch that does not support jumbo frames. > However, I only see this performance for perhaps 10 seconds, then it > drops to 25-30 MB/s for about 15-20 seconds, and then it drops again > to 17-20 MB/s where it remains for the duration of file transfer. > > This is not an occasional issue, it happens this way each and every > time. At each of the three levels, the speeds are consistent. > There is a brief period of inactivity (0.5 s) when the speeds are > reduced, leading me to believe that *something* is throttling speeds > back. > > Has anyone else seen this behavior? Any idea where it might be > coming from, and what I could do to keep a sustained 40-45 MB/s > transfer rate? > > Any suggestions as to what tools I might use to help diagnose this > would be appreciated. At the moment, I am in the process of putting > an old Windows box together to see if I can replicate the problem > and eliminate the possibility of a cause outside of the Solaris box. > -- > This message posted from opensolaris.org > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
