On Tue, Feb 10, 2009 at 3:56 PM, (private) HKS <hks.priv...@gmail.com> wrote: > On Tue, Feb 10, 2009 at 1:04 PM, Steve Polyack <kor...@comcast.net> wrote: >> (private) HKS wrote: >>> >>> My server's network performance seems all right. Testing basic TCP >>> throughput with iperf, I'm showing an average of 880Mbps or so. FTP >>> downloads to this server hum along at about 85MB/s. >>> >>> >> >> You may want to expirement with the "Maximum Network Buffer Size" parameter >> which is available in both the file-daemon and storage-daemon configuration >> files. As far as the documentation explains, the SD's default is 32768 bytes >> while the FD default is 65536 bytes. I'm not sure what the reason is for >> the difference, but I would try setting them both to either 32768 or 65536. >> Perhaps try larger values, but stay under the limits of your OS's TCP >> send/recv buffers (256k s/r on FreeBSD 7). >> > > Thanks for the recommendation. I've changed this around a bit, but > haven't seen any change. I also haven't been able to replicate this > poor performance through any other method of writing to disk, > transferring across the network, or some combination of the two. I'm > certainly open to doing tests on this if only I knew what to do. > > -HKS >
I have discovered (what appears to be) a bug in OpenBSD's bnx(4) driver that limits tx performance. I don't *think* it's related to this problem: rx traffic performs beautifully and the threshold (109Mb/s) is far above what I'm getting with Bacula. I mention it in the interest of full disclosure. -HKS ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users