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From: Eric Wong <>
To: Sam Saffron <>
Subject: Re: extend mwrap dump to include frees/allocations
Date: Sat, 2 Nov 2019 02:12:39 +0000
Message-ID: <20191102021239.GA24394@dcvr> (raw)
In-Reply-To: <>

Sam Saffron <> wrote:
> (allocations-frees) * (total_allocated / allocations) is a reasonable
> estimate for leak per call site.
> Currently mwrap dump does not include this info, I was thinking we
> default sort this down by estimated leak size and included the missing
> bits on info into the dump report?

Do you mean Mwrap.dump the method or via ENV dump_path: destructor?
(or both?).  It's been a while since I looked at this code(*)

It'd have to only be enabled via an optional flags arg for
compatibility with existing code.

Sorting the dump output would be expensive for big processes
because of the temporary memory required.  I think that's best
be left for the consumer to do in another thread/process.

(*) Fwiw, I've started learning XS and porting it to Perl5, and
hoping to maintain feature parity: <>

  reply index

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-08 22:52 Sam Saffron
2019-11-02  2:12 ` Eric Wong [this message]
2019-11-03 21:55   ` Sam Saffron

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