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From: Stefan Lendl <s.lendl@proxmox.com>
To: Roland <devzero@web.de>
Cc: Proxmox VE development discussion <pve-devel@lists.proxmox.com>, Thomas
 Lamprecht <t.lamprecht@proxmox.com>
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Subject: Re: [pve-devel] [PATCH ksm-control-daemon] ksmtuned: fix large
 number processing
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Roland <devzero@web.de> writes:

> Hi Stefan,
>
> looks good for me so far and indeed, on very large system when VMs eat
> up >2TB this could hit the limit very soon.
>
> but shouldn't we add some newline , as the original "print sum" prints on=
e ?
>
> root@s740:/usr/sbin# seq 1 100000 | awk '{ sum +=3D $1 }; END { print sum=
 }'
> 5.00005e+09
> root@s740:/usr/sbin# seq 1 100000 | awk '{ sum +=3D $1 }; END { printf
> ("%.0f", sum) }'
> 5000050000root@s740:/usr/sbin#
>
> # seq 1 100000 | awk '{ sum +=3D $1 }; END { print sum }'|xxd
> 00000000: 352e 3030 3030 3565 2b30 390a=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 5.00005e+09.
>
> # seq 1 100000 | awk '{ sum +=3D $1 }; END { printf ("%.0f", sum) }' |xxd
> 00000000: 3530 3030 3035 3030 3030=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 5000050000
>
> # seq 1 100000 | awk '{ sum +=3D $1 }; END { printf ("%.0f\n", sum) }' |x=
xd
> 00000000: 3530 3030 3035 3030 3030 0a=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 5000050000.
>

I see that this appears different in that way.

In the script the result is always assigned to a variable which should
not care about a newline, or should even better be without the newline
in my opinion.