Hi Adrian, > On 14/03/18 14:32, Evgeniy Didin wrote: > > Hi Adrian, > > > > > > > > Was the performance affected? i.e. the results from bonnie++ > > > > > > I have run bonnie++ several times before and after mentioned commit. Here is output: > > > --------------------------------------------------<8------------------------------------------------------------------------- > > > Before commit: > > > ARCLinux,512M,6442,50,7211,0,5333,0,12954,99,345638,100,+++++,+++,16,22322,100,+++++,+++,32735,99,22921,100,+++++,+++,32211,100 > > > ARCLinux,512M,6611,51,7248,0,5162,0,12951,99,344763,99,+++++,+++,16,22649,99,+++++,+++,32723,99,22572,100,+++++,+++,31697,100 > > > ARCLinux,512M,6597,52,7307,0,5368,0,12934,99,343987,99,+++++,+++,16,22775,100,+++++,+++,32713,99,22832,100,+++++,+++,31899,99 > > > After commit: > > > ARCLinux,512M,4453,36,6474,1,5852,0,12940,99,344329,100,+++++,+++,16,22168,98,+++++,+++,32760,99,22755,100,+++++,+++,32205,100 > > > ARCLinux,512M,5159,42,6944,1,5658,0,12945,99,344290,100,+++++,+++,16,22295,100,+++++,+++,32715,99,22888,99,+++++,+++,32007,99 > > > ARCLinux,512M,5170,42,6840,2,5315,0,12946,99,343889,100,+++++,+++,16,22445,100,+++++,+++,32681,99,22967,100,+++++,+++,32117,99 > > > --------------------------------------------------<8------------------------------------------------------------------------ > > > ??????????????^^^^? > > > If i understand correctly, in third column is shown "sequential output" per character speed (K/sec), which decreased. > > > > > > > What mount options did you use? > > > > > > I didn't use any options. Simply: > > > # mount /dev/mmcblk0p1 /mnt > > > > Note that the file system on SDcard was ext4.? > > Please try: > > perf record -a -e mmc:* -- bonnie++ -u root -r 256 -s 512 -x 1 -d /mnt > and share the resulting perf.data file when you are able > to reproduce the hung task message. > I have applied the patch below and collected perf.data using command above, hung message also appeared. Is this the information you needed? (perf.data is in attachments to this message). > You may want to add this patch first: > > https://urldefense.proofpoint.com/v2/url?u=https-3A__marc.info_-3Fl-3Dlinux-2Dmmc-26m-3D152110580324200&d=DwIDaQ&c=DPL6_X_6JkXFx7AXWqB0tg&r=vQk-RIbjwN0zvlwiMSpq3LYUTNf7Gqc4 > ujhosYITtAw&m=LeVFmgzU0ydw-qHaAVh-kZI-v4mldnCycYxIGxqDexU&s=SyGvsVJBOzegO2Mz3hQ5j6CY8KrjLWJERVHfosSmKSs&e= Best regards, Evgeniy Didin -------------- next part -------------- A non-text attachment was scrubbed... Name: perf.data.gz Type: application/gzip Size: 648026 bytes Desc: perf.data.gz URL: <http://lists.infradead.org/pipermail/linux-snps-arc/attachments/20180315/63f64b87/attachment-0001.gz>
