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2026-03-22 - 07:28

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

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 376 highest latencies:
System rack4slot1s.osadl.org (updated Sun Mar 22, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
441121120,3sleep113866-21cyclictest21:36:551
441121120,3sleep113866-21cyclictest21:36:551
214472800,3sleep30-21swapper/319:31:473
214472800,3sleep30-21swapper/319:31:473
25092650,2sleep02510-21sort21:31:560
25092650,2sleep02510-21sort21:31:560
251552640,3sleep20-21swapper/219:41:472
251552640,3sleep20-21swapper/219:41:472
211492580,9sleep1271rcuc/119:31:411
211492580,9sleep1271rcuc/119:31:411
153322530,3sleep30-21swapper/320:41:463
153322530,3sleep30-21swapper/320:41:463
261102520,2sleep20-21swapper/200:01:572
261102520,2sleep20-21swapper/200:01:572
234212520,2sleep30-21swapper/323:56:473
234212520,2sleep30-21swapper/323:56:473
234212520,2sleep30-21swapper/323:56:473
295712500,2sleep30-21swapper/300:11:553
119732500,3sleep10-21swapper/123:26:421
119732500,3sleep10-21swapper/123:26:421
119732500,3sleep10-21swapper/123:26:421
177832480,2sleep20-21swapper/223:41:462
177832480,2sleep20-21swapper/223:41:462
13869994818,28cyclictest0-21swapper/000:01:480
1386999461,13cyclictest544-21lldpd00:01:450
1386999461,13cyclictest544-21lldpd00:01:450
85842450,4sleep30-21swapper/320:21:563
85842450,4sleep30-21swapper/320:21:563
72132450,1chrt0-21swapper/121:46:481
72132450,1chrt0-21swapper/121:46:481
1386999451,21cyclictest25743-21/usr/sbin/munin00:01:500
1386999451,21cyclictest25743-21/usr/sbin/munin00:01:500
41752440,3chrt0-21swapper/200:31:472
41752440,3chrt0-21swapper/200:31:472
270572440,3sleep10-21swapper/100:06:461
270572440,3sleep10-21swapper/100:06:461
212712440,3sleep1271rcuc/122:21:581
212712440,3sleep1271rcuc/122:21:581
13869994115,24cyclictest0-21swapper/022:26:570
13869994115,24cyclictest0-21swapper/022:26:570
288212400,2sleep028717-21/usr/sbin/munin19:51:470
288212400,2sleep028717-21/usr/sbin/munin19:51:470
205672400,3sleep30-21swapper/320:56:413
205672400,3sleep30-21swapper/320:56:413
89782390,2sleep00-21swapper/023:16:530
89782390,2sleep00-21swapper/023:16:530
13869993918,19cyclictest0-21swapper/020:36:500
13869993918,19cyclictest0-21swapper/020:36:500
1386999391,10cyclictest31308-21latency_hist22:51:420
293442380,3sleep20-21swapper/222:46:392
293442380,3sleep20-21swapper/222:46:392
1386999381,9cyclictest18566-21latency_hist20:51:350
1386999381,10cyclictest10442-21fschecks_time23:21:480
1386999381,10cyclictest10442-21fschecks_time23:21:480
1386999381,10cyclictest10442-21fschecks_time23:21:480
13869993810,3cyclictest0-21swapper/023:45:340
13869993810,3cyclictest0-21swapper/023:45:340
13869993810,3cyclictest0-21swapper/023:45:340
1386999380,11cyclictest3187-21grep20:06:590
1386999380,11cyclictest3187-21grep20:06:590
63492370,2sleep16398-21/usr/sbin/munin20:16:521
63492370,2sleep16398-21/usr/sbin/munin20:16:521
1386999379,4cyclictest545-21in:imuxsock19:36:350
1386999379,4cyclictest545-21in:imuxsock19:36:350
1386999371,9cyclictest12728-21strings23:26:510
13869993716,19cyclictest23060-21grep23:56:350
13869993716,19cyclictest23060-21grep23:56:350
1386999371,4cyclictest19364-21memory20:51:500
1386999371,4cyclictest19364-21memory20:51:500
1386999371,11cyclictest6934-21irqstats23:11:480
1386999371,11cyclictest5950-21fschecks_time20:16:470
1386999371,11cyclictest5950-21fschecks_time20:16:470
1386999371,11cyclictest24876-21irqstats21:06:510
1386999371,11cyclictest24876-21irqstats21:06:510
1386999371,10cyclictest9930-21grep20:26:500
1386999371,10cyclictest9930-21grep20:26:500
1386999371,10cyclictest29386-21unixbench_singl21:16:570
1386999371,10cyclictest29386-21unixbench_singl21:16:570
1386999371,10cyclictest27278-21fschecks_time00:06:480
1386999371,10cyclictest27278-21fschecks_time00:06:480
1386999371,10cyclictest23319-21fschecks_time19:36:490
1386999371,10cyclictest23319-21fschecks_time19:36:490
1386999371,10cyclictest23319-21fschecks_time19:36:490
59412360,3chrt0-21swapper/300:36:473
59412360,3chrt0-21swapper/300:36:473
1386999365,6cyclictest14936-21if_wlan022:06:500
1386999365,6cyclictest14936-21if_wlan022:06:500
1386999361,8cyclictest11299-21/usr/sbin/munin20:31:470
1386999361,12cyclictest6196-21grep00:36:490
1386999361,12cyclictest6196-21grep00:36:490
1386999361,12cyclictest16837-21latency_hist20:46:420
1386999361,12cyclictest16837-21latency_hist20:46:420
1386999361,11cyclictest29518-21sort00:11:520
1386999361,11cyclictest20569-21if_wlan022:21:500
1386999361,11cyclictest20569-21if_wlan022:21:500
1386999361,10cyclictest5605-21cat23:06:560
1386999361,10cyclictest3710-21ls23:01:570
1386999361,10cyclictest3710-21ls23:01:570
1386999361,10cyclictest3458-21fschecks_time21:36:460
1386999361,10cyclictest3458-21fschecks_time21:36:460
1386999361,10cyclictest28516-21latency_hist19:51:350
1386999361,10cyclictest28516-21latency_hist19:51:350
1386999361,10cyclictest18537-21gltestperf22:16:490
1386999361,10cyclictest18537-21gltestperf22:16:490
1386999361,10cyclictest18537-21gltestperf22:16:490
1386999361,10cyclictest16543-21ntp_states23:36:550
1386999361,10cyclictest16543-21ntp_states23:36:550
1386999361,10cyclictest16543-21ntp_states23:36:550
1386999361,10cyclictest13937-21/usr/sbin/munin23:31:470
1386999361,10cyclictest13937-21/usr/sbin/munin23:31:470
1386999361,10cyclictest11842-21grep21:56:570
1386999361,10cyclictest11842-21grep21:56:570
1386999360,13cyclictest26617-21grep21:11:480
1386999360,13cyclictest26617-21grep21:11:480
13870993529,4cyclictest25017-21grep22:31:581
13870993529,4cyclictest25017-21grep22:31:581
1386999359,3cyclictest0-21swapper/020:21:500
1386999359,3cyclictest0-21swapper/020:21:500
1386999356,8cyclictest2721-21load00:26:510
1386999356,8cyclictest2721-21load00:26:510
1386999356,8cyclictest2721-21load00:26:510
13869993512,21cyclictest0-21swapper/019:41:470
13869993512,21cyclictest0-21swapper/019:41:470
1386999351,10cyclictest9153-21gltestperf21:51:480
1386999351,10cyclictest835-21ntp_states20:01:560
1386999351,10cyclictest835-21ntp_states20:01:560
1386999351,10cyclictest749-21runrttasks00:21:240
1386999351,10cyclictest749-21runrttasks00:21:240
1386999351,10cyclictest5342-21fschecks_time21:41:470
1386999351,10cyclictest5342-21fschecks_time21:41:470
1386999351,10cyclictest5342-21fschecks_time21:41:470
1386999351,10cyclictest30579-21/usr/sbin/munin19:56:470
1386999351,10cyclictest30579-21/usr/sbin/munin19:56:470
1386999351,10cyclictest27379-21cat22:41:360
1386999351,10cyclictest27379-21cat22:41:360
1386999351,10cyclictest27379-21cat22:41:360
1386999351,10cyclictest1502-21needreboot22:56:520
1386999351,10cyclictest1502-21needreboot22:56:520
1386999351,10cyclictest13732-21ls22:01:580
1386999351,10cyclictest13732-21ls22:01:580
1386999351,10cyclictest13732-21ls22:01:580
13869993510,2cyclictest0-21swapper/021:31:420
1386999350,12cyclictest17519-21/usr/sbin/munin19:21:510
1386999350,12cyclictest17519-21/usr/sbin/munin19:21:510
1386999350,11cyclictest30040-21/usr/sbin/munin21:21:470
1386999350,11cyclictest30040-21/usr/sbin/munin21:21:470
1386999350,11cyclictest30040-21/usr/sbin/munin21:21:470
13870993425,7cyclictest6780-21cron21:46:341
13870993425,7cyclictest6780-21cron21:46:341
13870993425,7cyclictest6780-21cron21:46:341
1386999341,12cyclictest21062-21if_err_wlan020:56:490
1386999341,12cyclictest21062-21if_err_wlan020:56:490
1386999341,11cyclictest23600-21timerwakeupswit21:01:570
1386999341,11cyclictest23600-21timerwakeupswit21:01:570
1386999341,10cyclictest4844-21processes00:31:560
1386999341,10cyclictest4844-21processes00:31:560
1386999341,10cyclictest31655-21gltestperf22:51:490
1386999341,10cyclictest31655-21gltestperf22:51:490
50732330,3sleep20-21swapper/223:06:502
13870993328,3cyclictest2172-21fschecks_time20:06:491
13870993328,3cyclictest2172-21fschecks_time20:06:491
13870993327,4cyclictest29695-21fschecks_time22:46:451
13870993327,4cyclictest29695-21fschecks_time22:46:451
13870993325,6cyclictest18913-21netstat22:16:541
13870993325,6cyclictest18913-21netstat22:16:541
13870993325,6cyclictest18913-21netstat22:16:541
1386999331,9cyclictest321-21fschecks_count00:21:480
1386999331,9cyclictest321-21fschecks_count00:21:480
1386999331,9cyclictest321-21fschecks_count00:21:480
1386999331,11cyclictest5508-21latency_hist20:16:360
1386999331,11cyclictest16845-21kernelversion22:11:500
1386999331,11cyclictest16845-21kernelversion22:11:500
1386999331,10cyclictest8180-21sed21:46:580
1386999331,10cyclictest8180-21sed21:46:580
1386999331,10cyclictest29706-21fschecks_time22:46:460
1386999331,10cyclictest29706-21fschecks_time22:46:460
1386999331,10cyclictest23827-21/usr/sbin/munin22:31:460
1386999331,10cyclictest23827-21/usr/sbin/munin22:31:460
184532320,3sleep10-21swapper/120:50:201
13870993225,5cyclictest749-21runrttasks00:01:461
13870993225,5cyclictest749-21runrttasks00:01:461
13870993225,5cyclictest749-21runrttasks00:01:461
1386999321,9cyclictest20208-21gzip23:46:520
1386999321,9cyclictest20208-21gzip23:46:520
1386999321,11cyclictest20400-21timerandwakeup19:26:570
1386999321,11cyclictest20400-21timerandwakeup19:26:570
114542320,3sleep10-21swapper/121:56:531
114542320,3sleep10-21swapper/121:56:531
206472310,3sleep20-21swapper/222:21:512
206472310,3sleep20-21swapper/222:21:512
1387199311,23cyclictest25056-21taskset00:01:402
1387199311,23cyclictest25056-21taskset00:01:402
1387199311,23cyclictest25056-21taskset00:01:402
13870993127,2cyclictest0-21swapper/123:21:351
13870993127,2cyclictest0-21swapper/123:21:351
13870993126,4cyclictest572-21cups-browsed20:26:561
13870993126,4cyclictest572-21cups-browsed20:26:561
13870993124,5cyclictest22662-21fschecks_count21:01:471
13870993124,5cyclictest22662-21fschecks_count21:01:471
13870993122,7cyclictest6333-21latency_hist23:11:391
13870993024,4cyclictest773-21apache219:46:401
13870993024,4cyclictest773-21apache219:46:401
13870993023,5cyclictest0-21swapper/122:11:561
13870993023,5cyclictest0-21swapper/122:11:561
279942290,2chrt0-21swapper/121:16:371
279942290,2chrt0-21swapper/121:16:371
223582290,2sleep122388-21sed21:01:391
223582290,2sleep122388-21sed21:01:391
19142290,2chrt0-21swapper/322:56:573
19142290,2chrt0-21swapper/322:56:573
13870992923,5cyclictest3598-21sendmail_mailst23:01:561
13870992923,5cyclictest3598-21sendmail_mailst23:01:561
13870992923,4cyclictest1648-21ntpd19:21:531
13870992923,4cyclictest1648-21ntpd19:21:531
13870992824,2cyclictest0-21swapper/122:01:591
13870992824,2cyclictest0-21swapper/122:01:591
13870992824,2cyclictest0-21swapper/122:01:591
13870992823,3cyclictest29066-21head19:51:481
13870992823,3cyclictest29066-21head19:51:481
13870992822,5cyclictest501-21kernelversion20:01:511
13870992822,5cyclictest501-21kernelversion20:01:511
13870992822,5cyclictest27553-21cpu22:41:451
13870992822,5cyclictest27553-21cpu22:41:451
13870992822,5cyclictest27553-21cpu22:41:451
13870992822,5cyclictest24259-21unixbench-2d19:36:591
13870992822,5cyclictest24259-21unixbench-2d19:36:591
13870992822,5cyclictest24259-21unixbench-2d19:36:591
13870992821,5cyclictest8517-21kworker/u9:3-xprtiod23:56:351
13870992821,5cyclictest8517-21kworker/u9:3-xprtiod23:56:351
13870992722,3cyclictest0-21swapper/121:26:561
13870992721,4cyclictest749-21runrttasks19:31:581
13870992721,4cyclictest749-21runrttasks19:31:581
13870992720,5cyclictest31847-21kernelversion22:51:511
13870992720,5cyclictest31847-21kernelversion22:51:511
327402260,3sleep20-21swapper/221:26:552
20942260,3sleep30-21swapper/300:26:463
20942260,3sleep30-21swapper/300:26:463
20942260,3sleep30-21swapper/300:26:463
13870992621,3cyclictest2798-21needreboot00:26:521
13870992621,3cyclictest2798-21needreboot00:26:521
13870992621,3cyclictest2798-21needreboot00:26:521
13870992620,5cyclictest28638-21kernelversion21:16:491
13870992620,5cyclictest28638-21kernelversion21:16:491
13870992620,3cyclictest0-21swapper/122:06:541
13870992620,3cyclictest0-21swapper/122:06:541
13870992620,3cyclictest0-21swapper/120:51:561
13870992620,3cyclictest0-21swapper/120:51:561
13870992619,5cyclictest30717-21fschecks_count19:56:471
13870992619,5cyclictest30717-21fschecks_count19:56:471
13870992617,7cyclictest5558-21latency_hist20:16:391
13870992521,3cyclictest31691-21idleruntime-cro21:26:351
13870992521,3cyclictest31691-21idleruntime-cro21:26:351
13870992521,3cyclictest31691-21idleruntime-cro21:26:351
13870992520,3cyclictest11443-21fschecks_count20:31:471
13870992518,5cyclictest7518-21latency_hist00:41:351
13870992518,5cyclictest7518-21latency_hist00:41:351
13870992518,5cyclictest24660-21fschecks_time21:06:491
13870992518,5cyclictest24660-21fschecks_time21:06:491
13870992517,6cyclictest0-21swapper/100:12:001
76142240,2sleep30-21swapper/323:11:573
13870992420,3cyclictest13474-21gltestperf20:36:491
13870992420,3cyclictest13474-21gltestperf20:36:491
13870992418,3cyclictest0-21swapper/100:16:591
13870992418,3cyclictest0-21swapper/100:16:591
13870992416,6cyclictest6643-21cut23:11:461
13870992416,6cyclictest16129-21cat20:41:551
13870992416,6cyclictest16129-21cat20:41:551
13870992414,8cyclictest15573-21cron23:36:351
13870992414,8cyclictest15573-21cron23:36:351
13870992318,3cyclictest9118-21cut21:51:481
13870992317,3cyclictest0-21swapper/123:41:571
13870992317,3cyclictest0-21swapper/123:41:571
13870992317,3cyclictest0-21swapper/123:41:571
13870992316,5cyclictest22111-21fschecks_count22:26:481
13870992316,5cyclictest22111-21fschecks_count22:26:481
13870992315,6cyclictest925-21sort22:56:451
13870992315,6cyclictest925-21sort22:56:451
13870992315,6cyclictest15800-21/usr/sbin/munin23:36:541
13870992315,6cyclictest15800-21/usr/sbin/munin23:36:541
13870992315,6cyclictest15800-21/usr/sbin/munin23:36:541
13870992315,5cyclictest20272-21ntp_kernel_pll_23:46:541
13870992315,5cyclictest20272-21ntp_kernel_pll_23:46:541
120072230,3sleep30-21swapper/320:31:533
13870992218,3cyclictest1380-21/usr/sbin/munin21:31:491
13870992218,3cyclictest1380-21/usr/sbin/munin21:31:491
13870992218,2cyclictest0-21swapper/119:46:561
13870992218,2cyclictest0-21swapper/119:46:561
13870992218,2cyclictest0-21swapper/100:21:561
13870992218,2cyclictest0-21swapper/100:21:561
13870992218,2cyclictest0-21swapper/100:21:561
13870992217,3cyclictest0-21swapper/100:06:491
13870992217,3cyclictest0-21swapper/100:06:491
1387299216,10cyclictest0-21swapper/300:01:573
1387299216,10cyclictest0-21swapper/300:01:573
13871992116,3cyclictest351rcuc/221:25:112
13871992116,3cyclictest351rcuc/221:25:112
13871992116,3cyclictest351rcuc/221:25:112
13870992116,4cyclictest30156-21needreboot22:46:501
13870992114,4cyclictest0-21swapper/123:26:561
13870992111,8cyclictest142-21systemd-journal00:35:461
13870992111,8cyclictest142-21systemd-journal00:35:461
51822200,3sleep30-21swapper/323:06:503
16742200,2sleep30-21swapper/321:31:473
16742200,2sleep30-21swapper/321:31:473
13871992015,3cyclictest351rcuc/221:31:582
13871992015,3cyclictest351rcuc/221:31:582
13871992013,5cyclictest351rcuc/219:31:192
13871992013,5cyclictest351rcuc/219:31:192
263602190,3sleep20-21swapper/222:36:542
263602190,3sleep20-21swapper/222:36:542
263602190,3sleep20-21swapper/222:36:542
25162190,3sleep20-21swapper/220:06:512
25162190,3sleep20-21swapper/220:06:512
13872991914,3cyclictest210312chrt19:31:353
13872991914,3cyclictest210312chrt19:31:353
13871991914,3cyclictest351rcuc/222:27:542
13871991914,3cyclictest351rcuc/222:27:542
13871991911,6cyclictest351rcuc/219:52:412
13871991911,6cyclictest351rcuc/219:52:412
13870991915,2cyclictest0-21swapper/120:21:551
13870991915,2cyclictest0-21swapper/120:21:551
122062190,3sleep20-21swapper/220:31:562
175982180,4sleep20-21swapper/223:41:422
1387299181,13cyclictest30033-21chrt21:21:463
1387299181,12cyclictest3372-21chrt21:36:453
1387299181,12cyclictest3372-21chrt21:36:453
13871991813,3cyclictest351rcuc/223:35:112
13871991813,3cyclictest351rcuc/223:35:112
13871991813,3cyclictest351rcuc/223:16:462
13871991813,3cyclictest351rcuc/223:16:462
13871991813,3cyclictest351rcuc/222:13:262
13871991813,3cyclictest351rcuc/222:13:262
13871991812,4cyclictest351rcuc/223:30:372
1387199181,14cyclictest18343-21chrt22:16:482
1387199181,14cyclictest18343-21chrt22:16:482
1387199181,14cyclictest18343-21chrt22:16:482
1387199181,12cyclictest7402-21chrt21:46:492
1387199181,12cyclictest7402-21chrt21:46:492
1387199181,11cyclictest28279-21chrt21:16:462
1387199181,11cyclictest28279-21chrt21:16:462
13871991712,4cyclictest351rcuc/223:23:172
13871991712,4cyclictest351rcuc/223:23:172
13871991712,4cyclictest351rcuc/223:23:172
13871991712,4cyclictest351rcuc/221:57:272
13871991712,4cyclictest351rcuc/221:57:272
13871991712,3cyclictest351rcuc/223:15:412
13871991712,3cyclictest351rcuc/200:11:552
13871991711,5cyclictest351rcuc/221:07:022
13871991711,5cyclictest351rcuc/221:07:022
13871991711,4cyclictest351rcuc/223:45:002
13871991711,4cyclictest351rcuc/223:45:002
13871991711,4cyclictest351rcuc/223:45:002
13871991711,4cyclictest351rcuc/222:57:132
13871991711,4cyclictest351rcuc/222:57:132
13871991711,4cyclictest351rcuc/221:43:232
13871991711,4cyclictest351rcuc/221:43:232
13871991711,4cyclictest351rcuc/221:43:232
1387299168,6cyclictest3816-21chrt00:31:363
1387299168,6cyclictest3816-21chrt00:31:363
1387299168,6cyclictest3816-21chrt00:31:363
1387299163,9cyclictest0-21swapper/321:08:203
1387299163,9cyclictest0-21swapper/321:08:203
1387299163,9cyclictest0-21swapper/300:07:203
1387299163,9cyclictest0-21swapper/300:07:203
1387299161,9cyclictest0-21swapper/323:26:453
1387299161,9cyclictest0-21swapper/323:26:453
1387299161,9cyclictest0-21swapper/323:26:453
1387299161,12cyclictest23019-21chrt22:26:583
1387299161,12cyclictest23019-21chrt22:26:583
1387299161,12cyclictest17882-21chrt23:41:473
1387299161,12cyclictest17882-21chrt23:41:473
1387299161,12cyclictest17882-21chrt23:41:473
1387299161,12cyclictest16935-21chrt22:11:513
1387299161,12cyclictest16935-21chrt22:11:513
1387299161,11cyclictest9518-21chrt20:26:463
1387299161,11cyclictest9518-21chrt20:26:463
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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