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Memory continusely increase
From: |
jake |
Subject: |
Memory continusely increase |
Date: |
Tue, 18 Dec 2018 23:10:34 -0700 (MST) |
Hi all,
I did a test about run a bash scriplt never quit,but met a memory usage
issue that cause used memory continuous increase.
This issue was present in bash-3.2.x, bash-4.0.x, bash-4.1.x, bash-4.2.x,
bash-4.3.x. However, This issue was disappeared in bash-4.4.0, I can't trace
which patch fixed the issue or which new feature was introduced in
bash-4.4.0.
Here is bash script:
------------------------------------------------------------------------------
#!/bin/bash
logger "Started testing"
while(true);do
while (true); do
ls > /dev/null
done
done
-------------------------------------------------------------------------------
root@localhost:/root> cat /proc/767/smaps |grep -A10 heap
01ba5000-01be8000 rw-p 00000000 00:00 0
[heap]
Size: 268 kB
Rss: 152 kB
Pss: 152 kB
Shared_Clean: 0 kB
Shared_Dirty: 0 kB
Private_Clean: 0 kB
Private_Dirty: 152 kB
Referenced: 152 kB
Swap: 0 kB
KernelPageSize: 4 kB
----------------------------------------------------------------------------------
root@localhost:/root> cat /proc/767/smaps |grep -A10 heap
00d4c000-00e55000 rw-p 00000000 00:00 0
[heap]
Size: 1060 kB
Rss: 1048 kB
Pss: 1048 kB
Shared_Clean: 0 kB
Shared_Dirty: 0 kB
Private_Clean: 0 kB
Private_Dirty: 1048 kB
Referenced: 1048 kB
Swap: 0 kB
KernelPageSize: 4 kB
----------------------------------------------------------------------------------
Could someone help to tell me which part of changes in bash-4.4.0, that
would be give me a direction backport code changes from bash-4.4 to
bash-3.2.x and bash-4.3.x.
Thanks,
Chen.
--
Sent from: http://gnu-bash.2382.n7.nabble.com/
- Memory continusely increase,
jake <=