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| author |  Andi Kleen <ak@linux.intel.com> | 2011-06-20 15:41:01 -0700 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2011-06-20 16:31:44 -0700 |
| commit | 39001007390a699265f16da47474d2b112118931 (patch) | |
| tree | 8cd0d0e19d6bf2dd156e1f2aa69fea8eebf034e8 | |
| parent | Add profile feedback build to git (diff) | |
| download | tgif-39001007390a699265f16da47474d2b112118931.tar.xz | |
Add explanation of the profile feedback build to the README
Also explains that the are additional warnings.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | INSTALL | 13 |
1 files changed, 13 insertions, 0 deletions
@@ -25,6 +25,19 @@ set up install paths (via config.mak.autogen), so you can write instead $ make all doc ;# as yourself # make install install-doc install-html;# as root +If you're willing to trade off (much) longer build time for a later +faster git you can also do a profile feedback build with + + $ make profile-all + # make prefix=... install + +This will run the complete test suite as training workload and then +rebuild git with the generated profile feedback. This results in a git +which is a few percent faster on CPU intensive workloads. This +may be a good tradeoff for distribution packagers. + +Note that the profile feedback build stage currently generates +a lot of additional compiler warnings. Issues of note: |