Re: AIC MEMORY CHECK

From: <J.Velikanovs_at_alise.lv>
Date: Sat, 19 Jun 2004 16:58:16 +0300
Message-ID: <OFFD281C80.EE4CEA98-ONC2256EB8.004BDE22-C2256EB8.004D6584@alise.lv>

I would say you need to pay attation to " sr, po, pi" columns. This question is not so easy to answer in UNIX systems. There is good paper "The SolarisMemorySystem Sizing,ToolsandArchitecture" from Sun about UNIX memory architecture concepts. If you have time take a look.
I would say, first of all you need pay your attention to “sr” – “Pages scanned by page-replacement algorithm”.
If you have this figure not 0 for a long time then your system is out of physical memory.

Regards,
Jurijs

"Seema Singh" <oracledbam_at_hotmail.com>
Sent by: oracle-l-bounce_at_freelists.org
19.06.2004 16:33
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        To:     oracle-l_at_freelists.org
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        Subject:        AIC MEMORY CHECK

Hi
In AIX whcih command is used to check memeory availability? What is free column in vmstat output?

SQL> !vmstat 2
kthr memory page faults cpu

----- ----------- ------------------------ ------------ -----------

r b avm fre re pi po fr sr cy in sy cs us sy id wa 3 2 701104 9931 0 0 0 172 391 0 932 484 494 16 9 73 2 6 3 701104 9925 0 0 0 0 0 0 1248 9900 24754 62 31 6 1 6 2 701104 9925 0 0 0 0 0 0 1590 10025 32335 59 38 2 1 8 2 701104 9922 0 0 0 0 0 0 1428 8472 27814 57 37 6 0 6 2 701830 9168 0 0 0 0 0 0 1180 8425 29490 58 37 5 0 8 2 701855 9110 0 0 0 0 0 0 1395 8462 29308 61 35 3 1 10 2 701857 9107 0 0 0 0 0 0 1095 7735 28840 58 36 5 0 11 2 702440 8492 0 0 0 0 0 0 1491 11994 32170 61 38 1 0 8 2 703832 7035 0 0 0 0 0 0 1612 11183 30331 65 34 2 0 14 2 703112 7781 0 0 0 0 0 0 1354 9157 31100 56 39 3 1 10 2 703732 7129 0 0 0 0 0 0 1317 9784 36044 57 42 0 0 11 2 704314 6518 0 0 0 0 0 0 1359 10158 33897 64 36 0 0 10 2 704114 6715 0 0 0 0 0 0 1672 11565 32874 57 42 0 0 9 2 704137 6693 0 0 0 0 0 0 1396 11428 29373 66 33 1 0 4 2 702762 8136 0 0 0 0 0 0 1068 7060 21805 44 30 24 2 5 3 702271 8649 0 0 0 0 0 0 1263 5920 22050 44 26 28 2 6 3 702952 7940 0 0 0 0 0 0 1528 7155 24400 50 28 17 5 18 3 705186 5597 0 0 0 0 0 0 1311 9586 32290 57 39 4 1 8 2 705246 5536 0 0 0 0 0 0 1284 8678 32667 60 38 2 0 7 3 706391 4336 0 0 0 0 0 0 1346 9808 29454 55 40 5 0 kthr memory page faults cpu Thx
-seema

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Received on Sat Jun 19 2004 - 09:02:23 CDT