Hi, Jonas Björklund has spoken, thus: > Hello, > > I get very poor performance with compression on a client. It's a Sun Fire > V490 with 4 CPUs on 1350Mhz and 16GB memory.
I'm having similiar problems with bacula here (but different hardware). filed: Sun Blade 1500 (1 CPU 1503Mhz 1GB memory) director: Sun E450 ( 4 CPUs 400Mhz 4GB memory) storaged: Sun Fire V240 (2 CPUs 1002Mhz 2GB memory) All systems are running Solaris 10 and bacula 1.3.8. The storaged has a hardware RAID attached, filed and director are using metadevices w/ mirroring. For my tests SSL encryption and SHA1 signatures has been disabled. Backups w/o compression are about 5.5MB/s, GZIP6 takes it down to 1.2MB/s. 5.5MB/s aren't really that much for our 100MBit LAN not to speak of 1.2MB/s. Decreasing the compression down to GZIP2 and GZIP1 resulted in a speed of 2.2MB/s.I watched any machine while backing up w/ iostat, vmstat and netstat. I couldn't see something spectacular on any. No processes were sitting in the run queue, nor blocked or swapping out. Load wasn't high on all machines and the disks' service time were quite acceptable. With one exception, the service time for the director's disks sometimes grew over the 30ms, but that shouldn't be a big deal? I also raised the Maximum Network Buffer Size for the filed and storaged up to 65536. Load on the involved switch is low, no I/O errors were detected on the wire. As a comparison, transferring files via scp usually gives us a rate of ~10MB/s. So, are there any suggestions where one could tweak to raise the transfer rate of bacula? Regards, Frank. -- -- Frank Brodbeck, BelWue-Koordination ---------- Tel: 0711/685-62502 -- Rechenzentrum der Universitaet Stuttgart Allmandring 3A, 70550 Stuttgart Fax: 0711/678-8363 -- mailto:[EMAIL PROTECTED] ------------------ http://www.belwue.de/ -- ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
