Bj?rn Lundberg <bjorn.lundberg at inu.se> writes: > We've been using 2.2.5 and wanted to move up to 2.2.13 > > So, we made a diff on all changes we've done on Malek's 2.2.5 and > applied that to 2.2.13. > We then ran a test on it and found 2.2.13 was 3 times slower than 2.2.5! > > We haven't analyzed what made the difference (or in fact what changes > we've introduced to 2.2.13 with the patch, other than the reported > conflicts). > > Is there anyone that experienced the same fenomena? > What might be the reason for this?
The fact that Dan's 2.2.13 uses write through cache is one thing that will affect performance. Grep for DC_SFWT in kernel/head.S and change the #if 0 to #if 1. I don't know if that's the only reason, but we don't get any performance degradation here with 2.2.13. //Marcus -- Signature under construction, please come back later. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
