-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 21/02/14 09:23, Kevin Van Workum wrote:
> Does anyone have a real-world application where setting > intel_idle.max_cstate=0 and processor.max_cstate=0 actually makes a > difference wrt application or network latency? Mellanox's recommendation is: intel_idle.max_cstate=0 processor.max_cstate=1 That's from: http://www.mellanox.com/related-docs/prod_software/Performance_Tuning_Guide_for_Mellanox_Network_Adapters.pdf We certainly saw performance problems with RHEL6 on Sandybridge systems without that. All the best! Chris - -- Christopher Samuel Senior Systems Administrator VLSCI - Victorian Life Sciences Computation Initiative Email: [email protected] Phone: +61 (0)3 903 55545 http://www.vlsci.org.au/ http://twitter.com/vlsci -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlMMFPcACgkQO2KABBYQAh8u2gCdGr1vE9n+6HmCONeFT02l3KRA LooAnRDVjC46wt7mGo9bKfe0To/Ek618 =s0tJ -----END PGP SIGNATURE----- _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
