| From: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> |
|---|---|
| To: | Greg Smith <gsmith(at)gregsmith(dot)com> |
| Cc: | Waldomiro <waldomiro(at)shx(dot)com(dot)br>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Linux TOP |
| Date: | 2009-10-22 00:31:51 |
| Message-ID: | dcc563d10910211731w1cc3a8c1i4f81e6e06437184c@mail.gmail.com |
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| Lists: | pgsql-general |
On Wed, Oct 21, 2009 at 4:25 PM, Greg Smith <gsmith(at)gregsmith(dot)com> wrote:
> On Wed, 21 Oct 2009, Scott Marlowe wrote:
>
>> In this:
>>
>> Mem: 16432240k total, 16344596k used, 87644k free, 27548k buffers
>> Swap: 10241428k total, 3680860k used, 6560568k free, 6230376k cached
>>
>> The 6.2G cached is considered part of the 16G used
>>
>> So it's not using more memory than it has. It's just the accounting
>> is inobvious.
>
> This is a snapshot. The fact that 3.7GB of swap is used here suggests there
> may have been more memory used at some point in the past then we're seeing
> now; that's more what I was commenting on. A look at the si/so figures in
> vmstat should nail down whether that's still going on or not now, as Tom
> already suggested.
Definitely. not arguing the guy doesn't have problems, just that the
way top accounts for memory is rather misleading for most folks.
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