Hi Dmitry,
On Apr 9, 2012, at 1:07 PM, Dmitry Antipov wrote: > On 04/04/2012 05:10 PM, Pantelis Antoniou wrote: > >> The reason for the slowdown is that perf sched record default settings is >> tuned for x86 pretty much, and there's a huge amount of data being generated. >> >> perf sched record is just a wrapper for perf record so try using this script >> for recording: >> >>> #!/bin/sh >>> perf record \ >>> -a \ >>> -R \ >>> -f \ >>> -m 8192 \ >>> -c 1 \ >>> -e sched:sched_switch \ >>> -e sched:sched_process_exit \ >>> -e sched:sched_process_fork \ >>> -e sched:sched_wakeup \ >>> -e sched:sched_migrate_task > > That's OK, but I got the following assertion while processing with 'perf > sched spr-replay -l': > OK > perf: builtin-sched.c:2629: execute_wait_id: Assertion `ret == 0 || ret == > 11' failed. > Hmm, futex op fails? Mind sending me the trace file to test locally? > The program continues, but may report a tens of these assertions. > > And one more question around threads. I'm trying to record/replay a test > application > based on WebKit framework, which tends to spawn a service threads from time > to time. > So, 'perf sched spr-replay -l' output may looks like the following: > > [perf/1503] > [kworker/0:2/1439] > [ksoftirqd/0/3] > [testbrowser/1504] > [swapper/1/0] > [kworker/1:2/1437] > [sshd/1232] > [testbrowser/1505] > [testbrowser/1506] > [ksoftirqd/1/9] > [testbrowser/1507] > [testbrowser/1508] > [sync_supers/179] > [testbrowser/1509] > [testbrowser/1510] > [testbrowser/1511] > [testbrowser/1512] > [testbrowser/1513] > [testbrowser/1514] > [testbrowser/1515] > [testbrowser/1516] > [testbrowser/1517] > [testbrowser/1518] > [testbrowser/1519] > [testbrowser/1520] > [testbrowser/1521] > [testbrowser/1522] > [testbrowser/1523] > [testbrowser/1524] > [testbrowser/1525] > [testbrowser/1526] > [testbrowser/1527] > [testbrowser/1528] > [testbrowser/1529] > [testbrowser/1530] > [testbrowser/1531] > [testbrowser/1532] > [testbrowser/1533] > [testbrowser/1534] > [testbrowser/1535] > [testbrowser/1536] > [testbrowser/1537] > [testbrowser/1538] > [testbrowser/1539] > [testbrowser/1540] > [testbrowser/1541] > [testbrowser/1542] > [testbrowser/1543] > [testbrowser/1544] > [testbrowser/1545] > [testbrowser/1546] > [testbrowser/1547] > [testbrowser/1548] > [testbrowser/1549] > [testbrowser/1550] > [testbrowser/1551] > [testbrowser/1552] > [testbrowser/1553] > [testbrowser/1554] > [testbrowser/1555] > [flush-179:0/1480] > [testbrowser/1556] > [testbrowser/1557] > [kjournald/510] > [mmcqd/0/499] > [khungtaskd/347] > [testbrowser/1558] > [testbrowser/1559] > [testbrowser/1560] > [testbrowser/1561] > [testbrowser/1562] > [testbrowser/1563] > [rsyslogd/573] > [testbrowser/1564] > [testbrowser/1565] > [testbrowser/1566] > [testbrowser/1567] > [testbrowser/1568] > [testbrowser/1569] > [testbrowser/1570] > [testbrowser/1571] > [testbrowser/1572] > [testbrowser/1573] > [testbrowser/1574] > [testbrowser/1575] > [testbrowser/1576] > [testbrowser/1577] > [testbrowser/1578] > [testbrowser/1579] > [testbrowser/1580] > [testbrowser/1581] > [testbrowser/1582] > [testbrowser/1583] > [testbrowser/1584] > [testbrowser/1585] > [testbrowser/1586] > [testbrowser/1587] > [testbrowser/1588] > [testbrowser/1589] > [testbrowser/1590] > [testbrowser/1591] > [testbrowser/1592] > [testbrowser/1593] > [testbrowser/1594] > [cron/1109] > [testbrowser/1595] > [testbrowser/1596] > [testbrowser/1597] > [testbrowser/1598] > [testbrowser/1599] > [testbrowser/1600] > [testbrowser/1601] > [testbrowser/1602] > [testbrowser/1603] > [testbrowser/1604] > [testbrowser/1605] > [testbrowser/1606] > [testbrowser/1607] > [testbrowser/1608] > [testbrowser/1609] > [testbrowser/1610] > [testbrowser/1611] > [testbrowser/1612] > [testbrowser/1613] > [testbrowser/1614] > [testbrowser/1615] > [testbrowser/1616] > [testbrowser/1617] > [testbrowser/1618] > [testbrowser/1619] > [testbrowser/1620] > [testbrowser/1621] > [testbrowser/1622] > [testbrowser/1623] > [testbrowser/1624] > [testbrowser/1625] > [testbrowser/1626] > [testbrowser/1627] > [testbrowser/1628] > [testbrowser/1629] > > There are a lot of threads created by main thread [testbrowser/1504]. Is > there a way > to find the most advanced CPU heaters among them? > I see your problem, I'll whip something to report the CPU accumulated run time per thread. > Dmitry Regards -- Pantelis _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
