On Wednesday, August 14, 2013 12:09:25 PM Dave Howorth wrote:
Roger Oberholtzer wrote:
A bit more information. On the slow system: # hdparm -Tt /dev/sdb
/dev/sdb: Timing cached reads: 27784 MB in 1.99 seconds = 13934.26 MB/sec Timing buffered disk reads: 468 MB in 3.01 seconds = 155.63 MB/sec
# hdparm -Tt /dev/sda
/dev/sda: Timing cached reads: 27776 MB in 1.99 seconds = 13930.08 MB/sec Timing buffered disk reads: 584 MB in 3.00 seconds = 194.66 MB/sec
On a system acting as expected: # hdparm -Tt /dev/sdb
/dev/sdb: Timing cached reads: 6852 MB in 2.00 seconds = 3427.26 MB/sec Timing buffered disk reads: 312 MB in 3.01 seconds = 103.56 MB/sec
So at this level they seem to be okay. Not sure what this tells us.
So the slow system appears to be noticeably faster than the normal system?
Yep.
What filesystems are in use? How much memory? I notice that both read
ext4, 32 GB RAM
and write cacheing are enabled - do you really want that?
It is the default as set up by the install. -- Yours sincerely, Roger Oberholtzer Ramböll RST / Systems Office: Int +46 10-615 60 20 Mobile: Int +46 70-815 1696 roger.oberholtzer@ramboll.se ________________________________________ Ramböll Sverige AB Krukmakargatan 21 P.O. Box 17009 SE-104 62 Stockholm, Sweden www.rambollrst.se -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org