Re: GNU Parallel Bug Reports Problems with --memfree option

> From: address@hidden
> Date: Thu, 13 Aug 2015 21:37:06 +0200
> To: address@hidden
> CC: address@hidden
> Subject: Re: GNU Parallel Bug Reports Problems with --memfree option
>
> On Thu, Aug 13, 2015 at 11:06 AM, Andreas Bernauer
> <address@hidden> wrote:
>
> > Looks as if --memfree should parse /proc/meminfo directly (instead of
> > the output of 'free', which parses /proc/meminfo). The meminfo format
> > looks easily grepable.
>
> Do we know how old Linux kernels' /proc/meminfo are formatted, so we
> do not break old systems just to support new ones.

If you want to check the formatting on old systems, here is output from my oldest server, CentOS 3 on a 2.4.21 kernel. (I keep it for testing. I do not need parallel to run on it.)

Regards, William

c32c3 ~$ uname -a

Linux c32c3.scs.com 2.4.21-63.EL #1 Tue Nov 3 18:32:44 EST 2009 i686 i686 i386 GNU/Linux

c32c3 ~$ /usr/bin/free

total used free shared buffers cached

Mem: 511964 505152 6812 0 128900 340100

-/+ buffers/cache: 36152 475812

Swap: 1052248 9324 1042924

c32c3 ~$ cat /proc/meminfo

total: used: free: shared: buffers: cached:

Mem: 524251136 517279744 6971392 0 132001792 349265920

Swap: 1077501952 9547776 1067954176

MemTotal: 511964 kB

MemFree: 6808 kB

MemShared: 0 kB

Buffers: 128908 kB

Cached: 340100 kB

SwapCached: 980 kB

Active: 379232 kB

ActiveAnon: 3884 kB

ActiveCache: 375348 kB

Inact_dirty: 71752 kB

Inact_laundry: 11044 kB

Inact_clean: 10688 kB

Inact_target: 94540 kB

HighTotal: 0 kB

HighFree: 0 kB

LowTotal: 511964 kB

LowFree: 6808 kB

SwapTotal: 1052248 kB

SwapFree: 1042924 kB

CommitLimit: 1308228 kB

Committed_AS: 22168 kB

HugePages_Total: 0

HugePages_Free: 0

Hugepagesize: 4096 kB

c32c3 ~$ cat /etc/redhat-release

CentOS release 3.9 (Final)

From:	William Bader
Subject:	Re: GNU Parallel Bug Reports Problems with --memfree option
Date:	Thu, 13 Aug 2015 16:00:11 -0400