Am Donnerstag, 22. November 2012, 07:54:34 schrieben Sie: > I have done the testing like this: both SAS II with 512 MB cache (COMPAQ Smart Array) on a HP DL 360 G6 - LVM Dom0. NetBSD is a bit "faster" in this test in my case. 100 MB =====NetBSD DomU (log,noatime,rw) dd if=/dev/zero of=/var/tmp/test.dd bs24k count0 100+0 records in 100+0 records out 104857600 bytes transferred in 0.280 secs (374491428 bytes/sec) Gentoo Linux DomU (ext4,noatime,rw) dd if=/dev/zero of=/tmp/test.dd bs24k count0 100+0 Datensätze ein 100+0 Datensätze aus 104857600 Bytes (105 MB) kopiert, 0,329664 s, 318 MB/s 1 GB === NetBSD (log,noatime,rw) dd if=/dev/zero of=/var/tmp/test.dd bs24k count00 1000+0 records in 1000+0 records out 1048576000 bytes transferred in 9.799 secs (107008470 bytes/sec) Gentoo Linux (ext4,noatime,rw) dd if=/dev/zero of=/tmp/test.dd bs24k count00 1000+0 Datensätze ein 1000+0 Datensätze aus 1048576000 Bytes (1,0 GB) kopiert, 14,0278 s, 74,7 MB/s But IO goes down significantly on both OS if i use file based virtual disks on DomUs as usual. cheers, Niels. -- --- Niels Dettenbach Syndicat IT & Internet http://www.syndicat.com PGP: https://syndicat.com/pub_key.asc ---
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