From: Alejandro Colomar <alx.manpages@gmail.com>
To: Florian Weimer <fweimer@redhat.com>, libc-alpha@sourceware.org
Subject: Re: [PATCH] malloc: Correct the documentation of the top_pad default
Date: Thu, 4 Aug 2022 17:46:40 +0200 [thread overview]
Message-ID: <8e9489ac-6e1e-3376-82c9-03db78a6e3c4@gmail.com> (raw)
In-Reply-To: <87wnbojswh.fsf@oldenburg.str.redhat.com>
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Hi Florian,
On 8/4/22 10:48, Florian Weimer via Libc-alpha wrote:
> DEFAULT_TOP_PAD is defined as 131072 in
> sysdeps/generic/malloc-machine.h.
>
> ---
> elf/dl-tunables.list | 1 +
> elf/tst-rtld-list-tunables.exp | 2 +-
> manual/tunables.texi | 2 +-
> 3 files changed, 3 insertions(+), 2 deletions(-)
>
[...]
> diff --git a/manual/tunables.texi b/manual/tunables.texi
> index 83cdcdac6d..ffd50a3fe2 100644
> --- a/manual/tunables.texi
> +++ b/manual/tunables.texi
> @@ -143,7 +143,7 @@ number of bytes to retain when shrinking any of the arenas. This provides the
> necessary hysteresis in heap size such that excessive amounts of system calls
> can be avoided.
>
> -The default value of this tunable is @samp{0}.
> +The default value of this tunable is @samp{131072} (128 KB).
I don't know how much glibc uses KB vs KiB, but I'd like to be pedantic
here and suggest using KiB (maybe this requires a global change to keep
consistency). See units(7).
Cheers,
Alex
> @end deftp
>
> @deftp Tunable glibc.malloc.perturb
>
--
Alejandro Colomar
<http://www.alejandro-colomar.es/>
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next prev parent reply other threads:[~2022-08-04 15:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-04 8:48 Florian Weimer
2022-08-04 14:51 ` Siddhesh Poyarekar
2022-08-04 15:14 ` Florian Weimer
2022-08-04 15:15 ` Siddhesh Poyarekar
2022-08-04 15:46 ` Alejandro Colomar [this message]
2022-08-04 15:54 ` Florian Weimer
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