On Sun, Dec 5, 2010 at 7:14 AM, Kirill Batuzov <[email protected]> wrote: > On 04.12.2010 23:11, Blue Swirl wrote: >> >> On Thu, Dec 2, 2010 at 1:12 PM, Kirill Batuzov<[email protected]> wrote: >>> >>> Move the last found TB to the head of the list so it will be found more >>> quickly next time it will be looked for. >>> >>> Signed-off-by: Kirill Batuzov<[email protected]> >>> Signed-off-by: Pavel Yushchenko<[email protected]> >>> --- >>> >>> This patch appeared during investigation of performance issues with >>> S5PC110 emulation for Samsung. It increses OS startup speed >>> significantly. >> >> The patch looks reasonable, but I didn't see any visible difference in >> my tests. Could you report your numbers? > > The exact numbers depend on complexity of guest system. > - For basic Debian system (no X-server) on versatilepb we observed 25% > decrease of boot time. > - For to-be released Samsung LIMO platform on S5PC110 board we observed 2x > (for older version) and 3x (for newer version) decrease of boot time. > - Small CPU-intensive benchmarks are not affected because they are > completely handled by 'tb_find_fast'. > > We also noticed better response time for heavyweight GUI applications, but I > do not know how to measure it accurately.
OK. Thanks, applied.
