Hi Jens, hi everyone, Client is 32-bit Debian Wheezy with my 2.0.7 fio package and server is 64-bit Debian Wheezy with 2.0.7 fio package. ms@mango:~/Zeit> cat /proc/version Linux version 3.2.0-2-686-pae (Debian 3.2.15-1) (debian- kernel@xxxxxxxxxxxxxxxx) (gcc version 4.6.3 (Debian 4.6.3-3) ) #1 SMP Sun Apr 15 17:56:31 UTC 2012 ms@mango:~/Zeit> vim randreadwrite.job ms@mango:~/Zeit> fio --client=frisbie randreadwrite.job hostname=frisbie, be=0, 64-bit, os=Linux, arch=x86-64, fio=2.0.7 <frisbie> zufälliglesen: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1 <frisbie> zufälligschreiben: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1 <frisbie> Starting 2 processes <frisbie> =2): [] [100.0% done] [613K/650K /s] [149 /158 iops] [eta 00m:00s] zufälliglesen: (groupid=0, jobs=1): err= 0: pid=8090 zsh: floating point exception fio --client=frisbie randreadwrite.job ms@mango:~/Zeit#136> cat randreadwrite.job [global] size=2g runtime=60 direct=1 [zufälliglesen] rw=randread [zufälligschreiben] rw=randwrite root@frisbie:~# fio --server= fio: server listening on 0.0.0.0,8765 root@frisbie:~# fio --server= fio: server listening on 0.0.0.0,8765 ^C fio: terminating on signal 2 root@frisbie:~# cat /proc/version Linux version 3.2.0-1-amd64 (Debian 3.2.6-1) (ben@xxxxxxxxxxxxxxx) (gcc version 4.6.2 (Debian 4.6.2-14) ) #1 SMP Fri Feb 17 05:17:36 UTC 2012 This is reproducable. Second time I used fio --server (without the = sign) - no difference. Any ideas? Thanks, -- Martin Steigerwald - teamix GmbH - http://www.teamix.de gpg: 19E3 8D42 896F D004 08AC A0CA 1E10 C593 0399 AE90 -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html