On Thu, 2008-07-31 at 14:12 -0400, Ms. Megan Larko wrote: > > megan: I am attaching the file from > /tmp/[EMAIL PROTECTED]:40_oss4.crew.local.detail > The complaint seems to be that the memory cannot be accessed.
Allocated, not accessed: ==============> total_size 17487872K rsz 1024 crg 1 thr 4 =====> write sg starting out command at "sgp_dd.c":843: Cannot allocate memory =====> read sg starting in command at "sgp_dd.c":784: Cannot allocate memory ==============> total_size 17487872K rsz 1024 crg 1 thr 8 =====> write sg starting out command at "sgp_dd.c":843: Cannot allocate memory =====> read sg starting in command at "sgp_dd.c":784: Cannot allocate memory ==============> total_size 17487872K rsz 1024 crg 1 thr 16 =====> write sg starting out command at "sgp_dd.c":843: Cannot allocate memory =====> read sg starting in command at "sgp_dd.c":784: Cannot allocate memory ==============> total_size 17487872K rsz 1024 crg 2 thr 4 =====> write sg starting out command at "sgp_dd.c":843: Cannot allocate memory sg starting out command at "sgp_dd.c":843: Cannot allocate memory =====> read sg starting in command at "sgp_dd.c":784: Cannot allocate memory sg starting in command at "sgp_dd.c":784: Cannot allocate memory So for whatever reason sgp_dd can't allocate memory. > megan: Pasting result-- > [EMAIL PROTECTED] ~]# sgp_dd of=/dev/sg16 if=/dev/null count=10 bs=512 time=1 > time to transfer data was 0.000121 secs > remaining block count=10 > 0+0 records in > 0+0 records out Hrm. The result doesn't look right. > Note that a "cat /proc/meminfo" shows 16Gb RAM on the machine oss4. > [EMAIL PROTECTED] ~]# cat /proc/meminfo > MemTotal: 16439328 kB > MemFree: 16101332 kB > Buffers: 32260 kB > Cached: 205820 kB I don't really know why you'd be getting those errors then. Buggy version of sgp_dd maybe? Buggy something else? > BTW I am running iozone v. 3.283 on the OS drive, a RAID6 JBOD disk > formatted ext3 and one of our existing Lustre disks and the lustre > system is doing well under iozone. Good. b.
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