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2026-08-25 - 12:15
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack1slot2.osadl.org (updated Tue Aug 25, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
242023626,0sleep20-21swapper/219:28:572
227123625,0sleep00-21swapper/019:27:110
225623525,0sleep10-21swapper/119:27:041
245523430,0sleep30-21swapper/319:29:183
339960,0migration/38227-21sh23:19:163
339960,0migration/331186-21taskset19:46:363
339960,0migration/330819-21timerandwakeup23:11:283
339960,0migration/328604-21sh00:16:343
339960,0migration/320246-21sendmail_mailqu20:46:253
339960,0migration/315338-21idleruntime21:31:183
339960,0migration/312693-21aten_r1power_cu00:01:163
29805060,0irq/28-eth0-rx-29514-21iostat_ios20:11:203
29805060,0irq/28-eth0-rx-22289-21ssh00:09:333
26829963,0cyclictest18718-21kworker/0:122:26:210
149960,0migration/031853-21sh23:13:510
149960,0migration/023516-21gltestperf22:51:180
149960,0migration/011145-21fschecks_count21:06:170
339950,0migration/39301-21kthreadcore23:01:203
339950,0migration/38850-21kthreadcore20:16:233
339950,0migration/38413-21munin-node20:41:213
339950,0migration/37412-21cpuspeed_turbos21:26:153
339950,0migration/36352-21taskset20:38:043
339950,0migration/36221-21kthreadcore21:01:213
339950,0migration/34493-21kthreadcore19:51:203
339950,0migration/332389-21sh00:42:403
339950,0migration/326287-21taskset23:46:553
339950,0migration/326000-21diskmemload22:13:043
339950,0migration/325334-21kthreadcore20:06:223
339950,0migration/323320-21kthreadcore23:26:233
339950,0migration/323320-21kthreadcore23:26:233
339950,0migration/321713-21sh21:51:233
339950,0migration/317748-21taskset21:11:143
339950,0migration/317155-21taskset20:23:513
339950,0migration/316844-21kthreadcore22:26:233
339950,0migration/313496-21kthreadcore21:46:193
339950,0migration/313022-21kthreadcore21:06:213
339950,0migration/310154-21idleruntime23:21:203
329950,0watchdog/34430-21grep22:21:183
329950,0watchdog/322548-21munin-node22:51:233
329950,0watchdog/317984-21cut20:01:223
329950,0watchdog/315979-21perl00:31:193
29815050,0irq/29-eth0-tx-21116-21munin-node20:06:190
29815050,0irq/29-eth0-tx-0-21swapper/021:16:160
29815050,0irq/29-eth0-tx-0-21swapper/020:26:210
29805050,0irq/28-eth0-rx-9701-21kthreadcore23:56:373
29805050,0irq/28-eth0-rx-716-21cut20:56:223
29805050,0irq/28-eth0-rx-5357-21kthreadcore22:01:233
29805050,0irq/28-eth0-rx-4976-21kthreadcore19:31:203
29805050,0irq/28-eth0-rx-30874-21kthreadcore22:36:223
29805050,0irq/28-eth0-rx-21593-21df20:51:173
29805050,0irq/28-eth0-rx-21159-21fschecks_count22:31:163
29805050,0irq/28-eth0-rx-17575-21ps20:26:083
29805050,0irq/28-eth0-rx-11988-21kthreadcore00:26:253
29805050,0irq/28-eth0-rx-11466-21sed19:36:203
29805050,0irq/28-eth0-rx-0-21swapper/323:51:213
29805050,0irq/28-eth0-rx-0-21swapper/323:06:233
29805050,0irq/28-eth0-rx-0-21swapper/322:50:253
29805050,0irq/28-eth0-rx-0-21swapper/322:17:393
29805050,0irq/28-eth0-rx-0-21swapper/321:59:043
29805050,0irq/28-eth0-rx-0-21swapper/321:38:163
29805050,0irq/28-eth0-rx-0-21swapper/300:48:253
29805050,0irq/28-eth0-rx-0-21swapper/300:21:253
26959955,0cyclictest0-21swapper/223:41:112
26959955,0cyclictest0-21swapper/223:24:002
26959955,0cyclictest0-21swapper/200:59:412
26959955,0cyclictest0-21swapper/200:22:102
26959950,0cyclictest0-21swapper/222:31:112
26959950,0cyclictest0-21swapper/200:02:372
26889955,0cyclictest0-21swapper/121:01:041
26889950,0cyclictest0-21swapper/123:19:381
26889950,0cyclictest0-21swapper/121:34:481
26889950,0cyclictest0-21swapper/100:58:581
26889950,0cyclictest0-21swapper/100:51:431
26829953,0cyclictest6920-21kworker/0:223:41:230
26829953,0cyclictest6920-21kworker/0:200:51:050
26829953,0cyclictest6920-21kworker/0:200:13:230
26829953,0cyclictest18718-21kworker/0:122:31:530
26829953,0cyclictest18718-21kworker/0:122:11:310
26829950,0cyclictest0-21swapper/023:19:320
26829950,0cyclictest0-21swapper/022:40:260
26829950,0cyclictest0-21swapper/000:16:270
26829950,0cyclictest0-21swapper/000:08:240
19150,0ktimersoftd/10-21swapper/123:43:081
179950,0migration/117954-21kthreadcore00:31:231
149950,0migration/09164-21sendmail_mailqu19:31:240
149950,0migration/09053-21kthreadcore20:41:220
149950,0migration/032342-21kthreadcore23:51:220
149950,0migration/031681-21kthreadcore23:31:220
149950,0migration/029666-21munin-node20:56:200
149950,0migration/027061-21kthreadcore20:31:210
149950,0migration/026462-21kthreadcore21:36:240
149950,0migration/018849-21pmu-power00:01:260
149950,0migration/017907-21taskset22:09:160
149950,0migration/017432-21kthreadcore23:06:220
149950,0migration/015264-21gltestperf21:31:170
149950,0migration/014248-21kthreadcore19:36:220
149950,0migration/013639-21taskset22:45:490
149950,0migration/01355-21kthreadcore19:51:190
149950,0migration/010683-21sh23:21:220
149950,0migration/010100-21sh23:39:210
8305040,0irq/26-0000:00:0-21swapper/223:01:232
339940,0migration/39318-21kthreadcore22:41:223
339940,0migration/33364-21kthreadcore21:41:223
339940,0migration/331724-21runrttasks20:35:533
329940,0watchdog/36612-21grep23:36:233
329940,0watchdog/313917-21kthreadcore00:51:233
329940,0watchdog/30-21swapper/321:21:223
329940,0watchdog/30-21swapper/321:16:263
329940,0watchdog/30-21swapper/300:56:193
29815040,0irq/29-eth0-tx-24970-21munin-node00:16:152
29815040,0irq/29-eth0-tx-17834-21ssh22:09:042
29815040,0irq/29-eth0-tx-13537-21sshd19:59:110
29815040,0irq/29-eth0-tx-10493-21ssh00:51:182
29815040,0irq/29-eth0-tx-0-21swapper/223:36:122
29815040,0irq/29-eth0-tx-0-21swapper/223:06:492
29815040,0irq/29-eth0-tx-0-21swapper/222:48:262
29815040,0irq/29-eth0-tx-0-21swapper/221:46:192
29815040,0irq/29-eth0-tx-0-21swapper/221:38:302
29815040,0irq/29-eth0-tx-0-21swapper/200:42:092
29815040,0irq/29-eth0-tx-0-21swapper/200:31:092
29815040,0irq/29-eth0-tx-0-21swapper/200:06:342
29815040,0irq/29-eth0-tx-0-21swapper/021:26:140
29815040,0irq/29-eth0-tx-0-21swapper/021:21:260
29815040,0irq/29-eth0-tx-0-21swapper/021:01:150
29815040,0irq/29-eth0-tx-0-21swapper/020:46:160
29815040,0irq/29-eth0-tx-0-21swapper/020:40:510
29815040,0irq/29-eth0-tx-0-21swapper/020:21:190
29815040,0irq/29-eth0-tx-0-21swapper/020:20:320
29805040,0irq/28-eth0-rx-0-21swapper/323:41:173
29805040,0irq/28-eth0-rx-0-21swapper/323:31:073
29805040,0irq/28-eth0-rx-0-21swapper/322:56:423
29805040,0irq/28-eth0-rx-0-21swapper/322:06:053
29805040,0irq/28-eth0-rx-0-21swapper/300:39:163
29805040,0irq/28-eth0-rx-0-21swapper/300:12:203
26959944,0cyclictest0-21swapper/221:11:242
26959943,0cyclictest4406-21awk21:01:192
26959943,0cyclictest3571-21lldpd21:17:432
26959943,0cyclictest3524-21snmpd23:56:162
26959943,0cyclictest3524-21snmpd23:19:002
26959943,0cyclictest3524-21snmpd22:59:452
26959943,0cyclictest3524-21snmpd22:28:152
26959943,0cyclictest3524-21snmpd21:56:152
26959943,0cyclictest3524-21snmpd21:32:442
26959943,0cyclictest3524-21snmpd21:08:142
26959943,0cyclictest3524-21snmpd20:15:592
26959943,0cyclictest3524-21snmpd20:06:592
26959943,0cyclictest3524-21snmpd19:51:442
26959943,0cyclictest3524-21snmpd19:36:142
26959943,0cyclictest3524-21snmpd00:36:162
26959943,0cyclictest3524-21snmpd00:27:012
26959943,0cyclictest3524-21snmpd00:14:162
26959943,0cyclictest30407-21awk22:36:212
26959943,0cyclictest29018-21awk23:51:192
26959943,0cyclictest28437-21awk22:16:202
26959943,0cyclictest25425-21awk23:11:182
26959943,0cyclictest18550-21awk19:41:192
26889944,0cyclictest0-21swapper/123:55:451
26889944,0cyclictest0-21swapper/123:21:321
26889944,0cyclictest0-21swapper/122:36:551
26889944,0cyclictest0-21swapper/122:01:271
26889943,0cyclictest3571-21lldpd22:18:431
26889943,0cyclictest3571-21lldpd22:11:431
26889943,0cyclictest3571-21lldpd21:26:131
26889943,0cyclictest3571-21lldpd00:42:451
26889943,0cyclictest3571-21lldpd00:27:151
26889943,0cyclictest3571-21lldpd00:11:151
26889943,0cyclictest3571-21lldpd00:08:451
26889943,0cyclictest3524-21snmpd22:26:151
26889943,0cyclictest3524-21snmpd21:23:441
26889943,0cyclictest3524-21snmpd21:14:441
26889943,0cyclictest3524-21snmpd21:06:591
26889943,0cyclictest3524-21snmpd20:57:141
26889943,0cyclictest3524-21snmpd20:42:291
26889943,0cyclictest3524-21snmpd20:36:141
26889943,0cyclictest3524-21snmpd20:16:141
26889943,0cyclictest3524-21snmpd20:14:141
26889943,0cyclictest3524-21snmpd20:01:141
26889943,0cyclictest3524-21snmpd19:59:141
26889943,0cyclictest3250-21irqbalance23:58:501
26889943,0cyclictest3250-21irqbalance00:16:401
26889943,0cyclictest31463-21awk00:21:171
26889943,0cyclictest25440-21awk23:11:181
26889943,0cyclictest25368-21sadc00:41:031
26889943,0cyclictest15136-21awk20:46:191
26889943,0cyclictest11477-21awk20:21:191
26889940,0cyclictest0-21swapper/121:37:481
26829944,0cyclictest0-21swapper/021:52:210
26829943,0cyclictest8388-21awk23:01:180
26829943,0cyclictest8070-21grep00:46:320
26829943,0cyclictest32575-21awk21:41:190
26829943,0cyclictest22398-21awk20:51:200
26829943,0cyclictest19577-21awk00:56:180
26829942,0cyclictest6920-21kworker/0:223:56:230
26829942,0cyclictest6920-21kworker/0:223:46:190
26829942,0cyclictest6920-21kworker/0:223:26:450
26829942,0cyclictest6920-21kworker/0:223:26:450
26829942,0cyclictest6920-21kworker/0:200:41:050
26829942,0cyclictest6920-21kworker/0:200:36:230
26829942,0cyclictest6920-21kworker/0:200:31:050
26829942,0cyclictest6920-21kworker/0:200:26:530
26829942,0cyclictest6920-21kworker/0:200:21:050
26829942,0cyclictest18718-21kworker/0:122:46:150
26829942,0cyclictest18718-21kworker/0:122:23:230
26829942,0cyclictest18718-21kworker/0:122:16:230
26829942,0cyclictest18718-21kworker/0:122:01:210
26829942,0cyclictest18718-21kworker/0:121:56:230
259940,0migration/24844-21kthreadcore20:36:222
259940,0migration/231253-21unixbench_multi20:31:292
249940,0watchdog/27452chrt23:32:272
249940,0watchdog/23188-21irqstats22:01:222
249940,0watchdog/229768-21kthreadcore19:46:262
249940,0watchdog/228870-21sensors_volt22:51:272
249940,0watchdog/2274062sleep220:51:262
249940,0watchdog/225651-21ssh22:12:022
249940,0watchdog/219263-21kthreadcore20:46:222
249940,0watchdog/21866-21munin-node00:46:192
249940,0watchdog/216716-21munin-node21:51:182
249940,0watchdog/210201-21cut22:41:222
249940,0watchdog/20-21swapper/223:29:552
249940,0watchdog/20-21swapper/223:29:552
249940,0watchdog/20-21swapper/222:21:222
249940,0watchdog/20-21swapper/221:41:222
179940,0migration/19807-21taskset19:34:211
179940,0migration/18961-21kthreadcore23:01:201
179940,0migration/1752-21irqrtprio19:51:181
179940,0migration/14071-21kthreadcore00:46:241
179940,0migration/13438-21sh22:21:041
179940,0migration/132084-21idleruntime22:56:171
179940,0migration/13199-21fschecks_time23:36:181
179940,0migration/126954-21kthreadcore22:51:221
179940,0migration/125016-21aten_r1power_en21:16:141
179940,0migration/124903-21cpuspeed_turbos19:46:201
179940,0migration/123445-21munin-node21:51:311
179940,0migration/121151-21sh22:47:481
179940,0migration/119397-21kthreadcore19:41:211
179940,0migration/117959-21cpuspeed_turbos23:26:171
179940,0migration/117959-21cpuspeed_turbos23:26:171
179940,0migration/112763-21aten_r1power_fr00:01:171
179940,0migration/111290-21idleruntime22:06:221
169940,0watchdog/126422-21ls21:56:181
169940,0watchdog/125492-21netstat23:46:231
169940,0watchdog/122775-21cut20:26:221
169940,0watchdog/121954-21fschecks_time20:51:181
169940,0watchdog/111096-21cut21:46:181
169940,0watchdog/10-21swapper/120:31:221
169940,0watchdog/10-21swapper/120:06:221
149940,0migration/09686-21kthreadcore21:46:180
149940,0migration/03526-21kthreadcore22:56:210
149940,0migration/030594-21kthreadcore20:11:210
149940,0migration/019813-21kthreadcore19:41:210
149940,0migration/014793-21fschecks_time20:01:180
329930,0watchdog/30-21swapper/319:56:063
29815030,0irq/29-eth0-tx-0-21swapper/021:11:150
29805030,0irq/28-eth0-rx-0-21swapper/319:41:163
26959932,0cyclictest7824-21awk19:56:192
26959932,0cyclictest6933-21basename20:41:152
26959932,0cyclictest4044-21awk19:31:182
26959932,0cyclictest3524-21snmpd21:21:142
26959932,0cyclictest3524-21snmpd20:21:592
26959932,0cyclictest18764-21awk20:26:202
26959932,0cyclictest15006-21awk20:01:192
26959932,0cyclictest13056-21netstat21:26:222
26959932,0cyclictest0-21swapper/223:46:102
26959930,0cyclictest29341-21perl20:56:172
26889932,0cyclictest3571-21lldpd19:36:101
26889932,0cyclictest32624-21awk21:41:201
26889932,0cyclictest16874-21awk23:06:191
26889931,0cyclictest0-21swapper/122:31:191
26829930,0cyclictest0-21swapper/019:46:190
249930,0watchdog/23717-21fschecks_count20:16:182
169930,0watchdog/10-21swapper/123:31:151
169930,0watchdog/10-21swapper/122:41:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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