https://bugzilla.novell.com/show_bug.cgi?id=850794
https://bugzilla.novell.com/show_bug.cgi?id=850794#c15
--- Comment #15 from Borislav Petkov
Considering Mathematica benchmark: I have made a clean fresh install of openSUSE 13.1, and you know what? The performance drop is gone. Well, almost. Mathematica default benchmark (Benchmark[]) gives 0.94, which is comparable to that of openSUSE 12.3. My own (highly parallelized) code runs 10% slower, but this drop-down is not as dramatic as the one observed previously. So, maybe we should close the bug, should we?
Yes, we will :) Great, so some libs didn't get updated properly or whatever else happened. I must remember this for the next time to ask bug reporters to install afresh. But yeah, normally one can't know what gets and doesn't get overwritten during a distro upgrade (I'm assuming this is what you did the first time).
If there remain questions pertaining to the general performance of openSUSE 13.1 kernel, I am nonetheless eager to help.
Thanks but I can do it here too - basically I have to run the perf record workload on one of my test boxes here on 3.7 and 3.11 or maybe 3.12 and compare. Also have to check where we're spending the most time. Oh well, when there's time. For the record, hunting performance regressions in the kernel can be very error prone, time consuming and tedious business. (in reply to comment #14)
BTW, the perf stat results above both pertained to the fresh clean installations of openSUSE, where Mathematica performance issues were already absent.
Right. Thanks for your time. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.