http://qa.mandrakesoft.com/show_bug.cgi?id=3172
------- Additional Comments From [EMAIL PROTECTED] 2003-03-11 23:06 ------- I have made extensive tests and I am sure this is NOT related to ACPI, and NOT to the kernel !! Here are my tests : I installed different versions of Mandrake, then compiled mplayer from source and tested mencoder on the same vob file sample, with the same parameters, using mpeg4 from libavcodec. On Mdk 9.0 (kernel 2.4.19-16) : 24 fps On Mdk9.1 RC2 (kernel 2.4.21), no ACPI : 11 fps Then On Mdk 9.1RC2 I installed the 2.4.29-16 kernel from 9.0 and booted on it. The test gave me 11 fps !! So the old kernel on the new 9.1RC2 system had the same performance drop. My theory is that it is NOT related to the kernel, but to mencoder or libavcodec, which has its performances crippled using the new glibc or gcc which is in the 9.1RC2. I don't know how to correct this problem, but probably the solution belongs in the mailing list of MPlayer or ffmpeg projects. ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ------- Reminder: ------- assigned_to: [EMAIL PROTECTED] status: NEW creation_date: description: This bug has been signaled on cooker mailing list, I signal it on behalf of Wesley J Landaker, who could not reach Bugzilla: > IO-APIC is enabled on my system, however all interrupts are routed to > CPU0. This didn't used to be the case, and I see a *drastic* > performance hit because of this (for instance, using mencoder to > capture real-time TV I used to get 35fps, now I can't even get > 20fps). It has been confirme by several people with different kernels: with standard kernel 2.4.21, I observed a very drastic performance problem with mencoder, encoding a video or TV, or encoding sound in oggvorbis (about 5 times slower). This happens also with the smp kernel, and this is even worse with the multimedia kernel.
