well, here's my first pass result: [root at csl-prime loges1]# time tar xf /root/linux-2.2.26.tar
real 114m6.662s user 0m0.049s sys 0m1.354s On 5/11/06, Roch Bourbonnais - Performance Engineering <Roch.Bourbonnais at sun.com> wrote: > > Joe Little writes: > > How did you get the average time for async writes? My client (lacking > > ptime, its linux) comes in at 50 minutes, not 50 seconds. I'm running > > again right now for a more accurate number. I'm untarring from a local > > file on the directory to the NFS share. > > > > I used dtrace to measure times (I used the sleep time so it > gives a ballpark figure). > > I untared with the tar file on the NFS share. > Just retimed after moving the tar file to /tmp. > > # ptime tar xf /tmp/linux-2.2.22.tar > ptime tar xf /tmp/linux-2.2.22.tar > > real 49.630 > user 1.033 > sys 11.405 > > > -r > > > > > On 5/11/06, Roch Bourbonnais - Performance Engineering > > <Roch.Bourbonnais at sun.com> wrote: > > > > > > > > > # ptime tar xf linux-2.2.22.tar > > > ptime tar xf linux-2.2.22.tar > > > > > > real 50.292 > > > user 1.019 > > > sys 11.417 > > > # ptime tar xf linux-2.2.22.tar > > > ptime tar xf linux-2.2.22.tar > > > > > > real 56.833 > > > user 1.056 > > > sys 11.581 > > > # > > > > > > > > > avg time waiting for async writes is around 3ms. > > > How much are you getting for the tar xf ? > > > > > > -r > > > > > > > >
