Actually, I do see corruption in pattern file [ see line 2 ]. "/root/fbtest/fiotestfile write 4209246208 262144 /root/fiotestfile write 9908fio version 2 iolog /root/fiotestfile add /root/fiotestfile open /root/fiotestfile write 1064566784 262144 " So two questions: 1) How do I specify iolog file per job ? 2) How does the replay test file look like ? Is the one below fine [based on original file in my previous mail] ? [global] description=Standard Performance test direct=1 size=10g filename=/root/fbtest/fiotestfile numjobs=20 group_reporting [randwrite_256] stonewall read_iolog=fio_pattern Thanks, Vikram On Sat, Mar 10, 2012 at 9:20 AM, Vikram Seth <seth.vik@xxxxxxxxx> wrote: > How do I specify a separate file for each job ? > > I have following simple test file [ see numjobs=20]. Will the logging > work without corruption ? > > [global] > description=Standard Performance test > runtime=30 > direct=1 > size=10g > filename=/root/fiotestfile > numjobs=20 > group_reporting > > [randwrite_256] > stonewall > rw=randwrite > bs=256k > write_iolog=fio_pattern > > Vikram > > On Fri, Mar 9, 2012 at 11:29 PM, Daniel Buggie <danielabuggie@xxxxxxxxx> wrote: >> I haven't tried them myself, but perhaps the write_iolog and >> read_iolog options would work for you in this case? >> >> write_iolog=str >> Write the issued I/O patterns to the specified file. >> Specify a separate file for each job, otherwise the iologs will be >> interspersed and the file may be corrupt. >> >> read_iolog=str >> Replay the I/O patterns contained in the specified file >> generated by write_iolog, or may be a blktrace binary file. >> >> Daniel >> >> On Fri, Mar 9, 2012 at 2:23 PM, Vikram Seth <seth.vik@xxxxxxxxx> wrote: >>> Hi, >>> >>> I am looking for an option that enables fio to use same set of >>> blocks/offsets across multiple runs of the test. >>> This will be useful if I want am trying to fix a perf issue and want >>> to rerun the test to verify the patch. For such cases an exact repro >>> of the i/o pattern is important. >>> >>> Thanks, >>> Vikram. >>> -- >>> 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 -- 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
