[CentOS] Exe file size is chaning during runtime

Peter Kjellstrom cap at nsc.liu.se
Thu Jun 21 14:36:22 UTC 2007

On Thursday 21 June 2007, Jim Perrin wrote:
> On 6/21/07, balajisundar at midascomm.com <balajisundar at midascomm.com> wrote:
> >     We have observed the exe file size getting changed during run time
> > of the system in CentOS.
> Yep. that's normal.
> > We are not sure why this is happening. Can some one throw light on this.
> Prelink.
> Basically there's a cron job that runs weekly, which optimizes
> binaries to load faster. It will change md5sums on the binaries it
> modifies. You can alter this behavior if you wish by setting
> parameters in /etc/sysconfig/prelink.

Also related, rpm -V "sees past" prelink stuff and is able to verify files 
even with prelink enabled. (if I remember correctly...)

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