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2023-06-07 - 11:31

x86 Intel Celeron G3900 @2800 MHz, Linux 4.16.15-rt7 (Profile)

Latency plot of system in rack #c, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h200 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rackcslot2.osadl.org (updated Wed Jun 07, 2023 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
498926855,8sleep10-21swapper/119:05:071
478826451,8sleep00-21swapper/019:03:010
5377991810,0cyclictest0-21swapper/120:52:461
5377991716,0cyclictest28106-21taskset22:52:251
5376991711,5cyclictest20108-21kworker/0:223:10:260
5376991711,5cyclictest1328-21kworker/0:219:43:340
5377991615,1cyclictest11762-21awk22:07:481
5377991615,0cyclictest24-21ksoftirqd/122:27:151
5377991614,1cyclictest7648-21ls21:57:431
5377991610,6cyclictest0-21swapper/121:11:451
5377991610,6cyclictest0-21swapper/120:51:411
5377991610,6cyclictest0-21swapper/119:56:321
5376991611,4cyclictest20108-21kworker/0:221:40:020
5376991610,5cyclictest917-21kworker/0:020:18:260
5377991515,0cyclictest0-21swapper/121:29:551
5377991515,0cyclictest0-21swapper/119:42:401
5377991514,1cyclictest7989-21df_inode20:37:361
5377991514,0cyclictest24-21ksoftirqd/120:22:151
5377991514,0cyclictest2327-21seq00:31:541
5377991514,0cyclictest16516-21chrt19:34:031
5377991513,1cyclictest0-21swapper/121:37:381
5377991510,5cyclictest0-21swapper/123:27:411
5377991510,5cyclictest0-21swapper/122:31:031
5377991510,5cyclictest0-21swapper/122:15:311
5377991510,0cyclictest0-21swapper/121:23:241
5377991510,0cyclictest0-21swapper/100:00:161
5376991514,0cyclictest31120-21ls00:22:430
5376991513,1cyclictest20443-21cat23:52:420
5376991511,4cyclictest917-21kworker/0:020:33:460
5376991511,4cyclictest20108-21kworker/0:222:16:020
5376991511,3cyclictest20108-21kworker/0:222:03:300
5376991511,3cyclictest20108-21kworker/0:221:24:380
5376991510,5cyclictest20108-21kworker/0:221:46:380
5376991510,4cyclictest917-21kworker/0:020:26:340
5376991510,4cyclictest20108-21kworker/0:200:11:100
5376991510,0cyclictest0-21swapper/022:47:260
5376991510,0cyclictest0-21swapper/020:45:180
5377991413,0cyclictest7289-21seq20:34:231
5377991413,0cyclictest24-21ksoftirqd/119:42:151
5377991413,0cyclictest0-21swapper/122:42:451
5377991412,1cyclictest633-21nscd19:17:411
5377991412,1cyclictest633-21nscd00:02:361
5377991412,1cyclictest25584-21munin-node21:32:341
5377991412,1cyclictest22005-21ls19:47:421
5377991412,1cyclictest15342-21apache200:18:551
5377991412,1cyclictest135-21jbd2/sda1-823:48:251
5377991410,3cyclictest0-21swapper/123:42:181
5376991412,1cyclictest27789-21ls20:02:420
5376991412,1cyclictest22553-21unixbench_multi21:12:450
5376991412,1cyclictest135-21jbd2/sda1-821:01:490
5376991410,4cyclictest20108-21kworker/0:221:10:380
5376991410,4cyclictest20108-21kworker/0:200:21:340
5376991410,3cyclictest1328-21kworker/0:219:59:020
5377991312,1cyclictest9950irq/110-ahci[0023:22:331
5377991312,1cyclictest798-21apache222:17:391
5377991312,1cyclictest24-21ksoftirqd/120:42:291
5377991312,1cyclictest15315-21apache222:37:401
5377991312,1cyclictest15315-21apache220:10:231
5377991312,1cyclictest0-21swapper/123:02:311
5377991312,0cyclictest3540-21seq23:12:181
5377991311,1cyclictest798-21apache221:03:031
5377991311,1cyclictest646-21nscd20:02:321
5377991311,1cyclictest4591-21/usr/sbin/munin21:52:381
5377991311,1cyclictest317-21rpcbind22:32:181
5377991311,1cyclictest2638-21/usr/sbin/munin21:47:351
5377991311,1cyclictest24866-21cat19:57:341
5377991311,1cyclictest231ktimersoftd/121:17:361
5377991311,1cyclictest15342-21apache220:28:061
5377991311,1cyclictest15315-21apache220:13:151
5377991310,3cyclictest0-21swapper/123:32:351
5377991310,3cyclictest0-21swapper/100:25:381
5377991310,3cyclictest0-21swapper/100:10:471
5377991310,2cyclictest9950irq/110-ahci[0023:17:161
5377991310,2cyclictest15342-21apache222:57:321
5377991310,2cyclictest0-21swapper/121:46:071
5377991310,2cyclictest0-21swapper/119:12:181
5377991310,1cyclictest10823-21kworker/u4:119:22:181
5377991310,0cyclictest0-21swapper/123:37:441
5377991310,0cyclictest0-21swapper/123:08:091
5376991313,0cyclictest15549-21awk22:17:470
5376991312,1cyclictest9950irq/110-ahci[0021:32:390
5376991312,1cyclictest93650irq/99-eth0-rx-23:12:500
5376991312,1cyclictest15315-21apache221:27:380
5376991312,1cyclictest135-21jbd2/sda1-822:24:490
5376991311,1cyclictest9434-21/usr/sbin/munin23:27:310
5376991311,1cyclictest8192-21needreboot23:22:360
5376991311,1cyclictest633-21nscd22:37:400
5376991311,1cyclictest597-21avahi-daemon22:11:030
5376991311,1cyclictest21236-21http_loadtime19:47:350
5376991311,1cyclictest15315-21apache221:52:320
5376991311,1cyclictest13367-21/usr/sbin/munin23:37:450
5376991311,1cyclictest11394-21/usr/sbin/munin23:32:420
5376991310,3cyclictest20108-21kworker/0:222:31:580
5376991310,3cyclictest0-21swapper/023:47:200
5376991310,3cyclictest0-21swapper/023:01:180
5376991310,3cyclictest0-21swapper/021:17:240
5376991310,3cyclictest0-21swapper/020:27:260
5376991310,3cyclictest0-21swapper/020:12:440
5376991310,3cyclictest0-21swapper/019:54:010
5376991310,3cyclictest0-21swapper/019:32:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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