Hemraj S wrote:
Hi,
I m currently running my production servers on RHEL 4.6 & would like
to migrate to Centos4.6 as it has more benefits & advantages. I looked
at the Centos release notes available at
http://mirror.centos.org/centos/4.6/os/i386/RELEASE-NOTES-en.html and
understood that the basic difference between RHEL & Centos
are look/feel related & binaries,functionalities are almost same. But
when i compared the sysctl values of RHEL4.6 with Centos4.6, i found
that there are lot of differences in the parameter values. Now my
question is:
1) Just like sysctl difference, is there any other difference between
RHEL & Centos which could vary the performance & needs to be taken
care during migration.
2) When the Centos packages are built, are they built with the same
configuration as in RHEL or is there any difference.
the defaults for sysctl should be identical if both systems are running
the same kernel revision on similar hardware. do a `uname -a` on
both. did your rhel4.6 system have anything in /etc/sysctl.conf ?
CentOS is built directly from the SRPM's for the AS configuration of
RHEL, using the exact same options. the precise versions of the
compilers and tools used may vary in some cases as upstream doesn't
fully document their build process (RHEL version X is apparently not
built on a stock RHEL version X development platform, using the supplied
tools).
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