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Date:      Sun, 26 Jul 2020 22:33:26 -0500
From:      Valeri Galtsev <galtsev@kicp.uchicago.edu>
To:        freebsd-questions@freebsd.org
Subject:   Re: Ask stupid questions and you'll get a stupid answers, was: Technological advantages over Linux
Message-ID:  <04bb7095-3e62-22d7-9db7-cfba3c66247b@kicp.uchicago.edu>
In-Reply-To: <20200727025242.GA48950@admin.sibptus.ru>
References:  <CAGBxaX=Ktr-pqtT8FU37ajkYonVLYT_WhSenn23Tj5b=i0d-8g@mail.gmail.com> <20200725162403.GA4721@admin.sibptus.ru> <CAGBxaXmBZcCWqAZFR9OSyRGrqGFU%2BqCAZ8CfOi=0oXAmf-2=tA@mail.gmail.com> <20200725182554.deffc63058a7c9f6d343ef06@sohara.org> <04df312d-9b2b-1873-2117-79a49e089bd9@kicp.uchicago.edu> <20200726063256.GA22924@admin.sibptus.ru> <20200726093909.ee5e14e643d31da4dad5c804@sohara.org> <20200726151835.GA35966@admin.sibptus.ru> <27ca8c6c-6b06-6ad4-7af0-2b88f51a3856@kicp.uchicago.edu> <20200726165212.a0ac28ce104b9dfd009cc4c5@sohara.org> <20200727025242.GA48950@admin.sibptus.ru>

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On 7/26/20 9:52 PM, Victor Sudakov wrote:
> Steve O'Hara-Smith wrote:
>> On Sun, 26 Jul 2020 10:39:16 -0500
>> Valeri Galtsev <galtsev@kicp.uchicago.edu> wrote:
>>
>>> My understanding of Linux OOM killer lies along same lines though my
>>> understanding is much more simplified: kill minimal number of processes
>>> to recover maximum amount of resources.
>>
>> 	Not always the right thing to do though.
>>
>>> Another speculative way to say
>>> it would be: process owning maximum amount of RAM that keeps allocating
>>> more RAM is first candidate.
>>
>> 	What a pity if that is the heavy weight analytic program that has a
>> run time of several hours/days and is the only thing that matters running
>> on the system.
> 
> If such a program's data is valuable at all, it should save provisional
> results from time to time to a non-volatile storage.

Yes, That was what I said too.I even used standard word for this: 
checkpointing. Like in number crunching where you just restart your job 
from last checkpoint. Did my message not go through to the mail list?

Valeri

> Even office
> editors and spreadsheets save their data periodically.
> 

-- 
++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
++++++++++++++++++++++++++++++++++++++++



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