| hashar added a comment. |
I manually rebuild mwext-testextension-php55-composer-trusty for Wikibase. Instructed nodepool to not delete the instance (ssh labnodepool1001.eqiad.wmnet nodepool hold <ID of instance) and connected to it while the test was running.
The vmstat at the end of the build. Memory metrics are in megabytes, lines one second apart:
procs ---------------memory-------------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 2 0 0 602 47 957 0 0 0 340 2777 6007 49 3 48 1 0 1 0 0 591 47 957 0 0 0 288 2806 6929 48 4 48 1 0 1 0 0 571 47 957 0 0 48 32 4147 9573 48 4 47 1 0 2 0 0 527 47 957 0 0 0 36 6498 8514 50 5 45 0 0 1 0 0 562 47 959 0 0 0 372 7061 11920 46 10 43 1 0 1 0 0 562 47 959 0 0 0 20 1248 2536 48 3 49 0 0 1 0 0 562 47 959 0 0 0 0 365 116 48 2 50 0 0 1 0 0 562 47 959 0 0 0 7296 483 954 49 3 48 1 0 1 0 0 562 47 959 0 0 0 9748 488 889 50 2 48 1 0 1 0 0 2405 47 959 0 0 4 404 1136 1913 36 8 55 0 0 0 0 0 2396 47 962 0 0 152 2792 3631 6457 35 5 59 1 0 1 0 0 2389 47 963 0 0 1332 60 1429 2521 42 4 54 1 0 1 0 0 2387 47 964 0 0 32 956 1643 2917 73 3 24 0 0 1 0 0 2379 47 966 0 0 52 1468 2949 5027 42 6 52 1 0 0 0 0 2379 47 966 0 0 4 0 834 1181 51 1 48 0 0 0 0 0 2379 47 966 0 0 0 0 119 134 0 0 100 0 0 0 0 0 2379 47 966 0 0 0 0 126 343 1 0 99 0 0 0 0 0 2380 47 966 0 0 0 0 105 116 0 0 100 0 0 0 0 0 2380 47 966 0 0 0 368 101 118 0 0 100 0 0 0 0 0 2380 47 966 0 0 0 56 271 364 0 1 99 0 0
The instance had at worth 500MB of free memory and ~ 950MB of cache (eg file system cache which can be reclaimed by the OS).
A snapshot of top:
top - 20:46:30 up 1:03, 3 users, load average: 2.03, 1.78, 0.90 Tasks: 142 total, 3 running, 139 sleeping, 0 stopped, 0 zombie %Cpu(s): 39.8 us, 11.6 sy, 0.0 ni, 48.3 id, 0.0 wa, 0.0 hi, 0.3 si, 0.0 st KiB Mem: 4048100 total, 3320404 used, 727696 free, 48352 buffers KiB Swap: 0 total, 0 used, 0 free. 979012 cached Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3910 jenkins 20 0 2123364 1.619g 14476 R 81.1 41.9 6:25.79 php5 -dzend.enable_gc=0 phpunit.php ... 1482 mysql 20 0 624248 169096 10064 S 1.0 4.2 0:20.91 /usr/sbin/mysqld ... 24324 jenkins 20 0 7868 1156 740 R 1.0 0.0 0:00.03 /home/jenkins/workspace/mwext-testextension-php55-composer-trusty/src/extensions/Scribunto/engines/LuaStandalone/binaries/l+ 2149 jenkins 20 0 2419876 212784 15152 S 0.7 5.3 0:25.05 java -jar slave.jar 23810 jenkins 20 0 105776 2044 1044 S 0.7 0.1 0:03.00 sshd: jenkins@pts/1 7 root 20 0 0 0 0 S 0.3 0.0 0:03.43 [rcu_sched]So I think that rules out the lack of memory on the instance. Unless the fork of Scribunto actually syphon up all memory somehow OR is limited somehow.
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To: hashar
Cc: Stashbot, Lydia_Pintscher, Aleksey_WMDE, Ladsgroup, WMDE-leszek, Anomie, hashar, aude, thcipriani, Addshore, Paladox, hoo, Aklapper, JanZerebecki, StudiesWorld, QZanden, Salgo60, D3r1ck01, Izno, Wikidata-bugs, Dinoguy1000, jayvdb, MrStradivarius, Jackmcbarn, Mbch331
Cc: Stashbot, Lydia_Pintscher, Aleksey_WMDE, Ladsgroup, WMDE-leszek, Anomie, hashar, aude, thcipriani, Addshore, Paladox, hoo, Aklapper, JanZerebecki, StudiesWorld, QZanden, Salgo60, D3r1ck01, Izno, Wikidata-bugs, Dinoguy1000, jayvdb, MrStradivarius, Jackmcbarn, Mbch331
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