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Introduction
JobScheduler's memory and CPU usage depends on a number of factors:
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Shell Job which processed 200 and 500 orders in parallel
Analysis
Memory without running JobScheduler job
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total used free shared buffers cached Mem: 10122748 1289088 8833660 0 43612 631104 -/+ buffers/cache: 614372 9508376 Swap: 2064376 26232 2038144
...
...
...
Test:
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200
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orders
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in
...
200
...
tasks
...
in
...
parallel
...
Code Block
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total used free shared buffers cached Mem: 10122748 1553944 8568804 0 43740 635880 -/+ buffers/cache: 874324 9248424 Swap: 2064376 26232 2038144
...
...
...
Test:
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500
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orders
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in
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500
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tasks
...
in
...
parallel
...
Code Block
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total used free shared buffers cached Mem: 10122748 1967436 8155312 0 46268 655120 -/+ buffers/cache: 1266048 8856700 Swap: 2064376 26048 2038328
Java API Job which processed 100, 150 and 200 orders in parallel
Requirements
Configure the job with java_optionh1. "-Xmx32m" to avoid the error:
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# There is insufficient memory for the Java Runtime Environment to continue.
Edit the ~/.profile file of the JobScheduler user:
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ulimit -u 4096
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and
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edit
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/etc/security/limits.conf
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:
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[JobScheduler user] soft nofile 4096 [JobScheduler user] hard nofile 10240
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to
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avoid
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the error:
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java.lang.OutOfMemoryError: unable to create new native thread
Analysis
Memory without running JobScheduler job
Code Block
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total used free shared buffers cached Mem: 10122748 1576536 8546212 0 38836 695908 -/+ buffers/cache: 841792 9280956 Swap: 2064376 0 2064376
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...
Test:
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100
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orders
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in
...
100
...
tasks
...
in
...
parallel
...
Code Block
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total used free shared buffers cached Mem: 10122748 3389660 6733088 0 38852 699960 -/+ buffers/cache: 2650848 7471900 Swap: 2064376 0 2064376
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Test:
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150
...
orders
...
in
...
150
...
tasks
...
in
...
parallel
...
Code Block
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total used free shared buffers cached Mem: 10122748 7219820 2902928 0 27276 251860 -/+ buffers/cache: 6940684 3182064 Swap: 2064376 0 2064376
...
...
...
Test:
...
200
...
orders
...
in
...
200
...
tasks
...
in
...
parallel
...
Code Block
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total used free shared buffers cached Mem: 10122748 9989012 133736 0 12600 245496 -/+ buffers/cache: 9730916 391832 Swap: 2064376 14032 2050344