[lkml]   [2009]   [Dec]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRE: [PATCH RFC] [X86] Compile Option Os versus O2 on latest x86 platform
    > a key question is.. how much more memory do you have free due to -Os?
    > (because memory is cache is performance on a system level as well)
    The kernel code size from Os is 12M, that from O2 is 14M.
    > and how much less icache pressure is there?
    From perf stat report, cache reference(unified cache) from O2 is almost the same with Os.


     \ /
      Last update: 2009-12-03 16:05    [W:0.021 / U:107.316 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site