Re: How do I get memory usage numbers?
Re: How do I get memory usage numbers?
- Subject: Re: How do I get memory usage numbers?
- From: Alex Zavatone <email@hidden>
- Date: Mon, 13 Aug 2012 18:38:18 -0400
Actually, when Safari is paging to the HD because it decided it needed to use 5+ GB of RAM, purge is really useful in temporarily getting the Mac back to normal speed until the memory bloats again.
On Aug 13, 2012, at 5:54 PM, Jens Alfke wrote:
>
> On Aug 13, 2012, at 2:01 PM, Charlie Dickman <email@hidden> wrote:
>
>> What I want to do is determine the ratio of inactive to free in order to determine when to execute the purge command to free up the inactive memory before the system gets into trouble.
>
> That's not what purge(1) does. It simply forces all resident pages to be paged back out. It's not going to free up any address space, and it's not going to speed up the system (rather, it'll slow it down a lot, as every active process has to start hitting the disk to page its address space back in.)
>
> —Jens
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