> MemAvailable is a bad heuristic, it does *not* represent "free"
> memory.
MemAvailable is a good heuristic, it does represent available memory.
вт, 14 июл. 2020 г. в 00:49, Benjamin Berg <bberg@xxxxxxxxxx>:
On Mon, 2020-07-13 at 08:21 -0700, John M. Harris Jr wrote:
> On Monday, July 13, 2020 1:58:30 AM MST Benjamin Berg wrote:
> > But, I also think that the people proposing this have done quite a lot
> > of testing to find reasonable values for various scenarios. If they
> > have done their job correctly, then EarlyOOM will *not* prevent you
> > from fully utilizing your system memory in most scenarios.
>
> By the very nature of the configuration, that's not the case. For example, on
> my system, for example, it will start sending SIGTERM where I have over 600
> MiB free, and will begin to simply kill software when I have over a quarter of
> a gigabyte left.
You keep saying these numbers, yet I don't see how your claim adds up.
1. 600MiB assumes 10% of main memory.
However, Fedora uses 4% (capped at 400MiB)
(see /etc/default/earlyoom, which contains "-m 4 -M 409600")
2. So EarlyOOM uses this calculation on Fedora:
`MemAvailable < min(MemTotal * 4%, 400MiB)`
(values come from /proc/meminfo)
3. MemAvailable is a bad heuristic, it does *not* represent "free"
memory.
Benjamin
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