[Beowulf] posting bonnie++ stats from our cluster: any comments about my I/O performance stats?

[Rahul Nabar]

On Fri, Sep 25, 2009 at 2:38 PM, Rahul Nabar <rpnabar at gmail.com> wrote:

>> We use this to model bonnie++ and other types of workloads.  It provides a
>> great deal of useful information.
>
>

More details from the fio benchmark.....

##################################################################################################
fio: terminating on signal 2

random: (groupid=0, jobs=16): err= 0: pid=26509
  read : io=12,391MiB, bw=3,732KiB/s, iops=466, runt=3399938msec
    clat (msec): min=3, max=1,122, avg=23.06, stdev= 4.38
    bw (KiB/s) : min=    7, max=  621, per=9.34%, avg=348.67, stdev=29.11
  cpu          : usr=0.04%, sys=0.17%, ctx=3736755, majf=0, minf=33036
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=1586090/0, short=0/0

     lat (msec): 4=0.01%, 10=0.38%, 20=17.11%, 50=69.74%, 100=12.01%
     lat (msec): 250=0.73%, 500=0.02%, 750=0.01%, 1000=0.01%, 2000=0.01%

Run status group 0 (all jobs):
   READ: io=12,391MiB, aggrb=3,732KiB/s, minb=3,732KiB/s,
maxb=3,732KiB/s, mint=3399938msec, maxt=3399938msec
##################################################################################################

-- 
Rahul