[Lustre-discuss] Performance drop (1.6.5 vs 1.6.4.3, OFED 1.2)?

[Andrei Maslennikov]

  Hello Andreas,

  the tests were always done with only one thread as I was interested in the
unsmeared   peak performance. Will also compare 1.6.4.3 and 1.6.5 with 2-4
simultaneous threads.
  BTW, during the tests I always had this setting on the client: "options
ksocklnd irq_affinity=0".

  In these tests, I always used the stock OFED 1.2+ that comes with the
RHEL4
  distribution. In case of official 1.6.5 kernel which comes without IB
support I had to add
  it by hand starting with the official kernel tree for this exact kernel.
So OFED 1.3 may
  hardly be blamed and LST would reveal nothing, right?

  I will try to check the CPU loads for both cases at the first opportunity,
hopefully before
  the end of this week

  Regards - Andrei.
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