Phil Regnauld writes: > ... You want metadata reordering, like BSD SoftUpdates > does, so that you avoid committing to disk data which will > disappear within the next update window.
True. Slide 20 from my presentation confirms it: performance: does RAM-disk help? * measuring setup: md 0.5 GB (out of 2GB) on FreeBSD: /tmp, /var/tmp, /var/amavis/tmp, clam-tmp * no change in throughput (below 1%) compared to UFS2 file system on a ATA disk with write-cache enabled * below 5% change on SCSI disk with soft updates and no SA checks, practically no change with SA enabled * likely benefit with some other file systems > vfs backed ramdisks (FreeBSD for example) only use memory when > files are allocated. Removed files free up the corresponding memory > backing. So you only use as much memory as is necessary. Thanks, that's good to know. Mark ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ AMaViS-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
