rocksdb/README.fb

* How to compile using fbcode and jemalloc
  source fbcode.sh
  make 

* Compiling for CPUs with SSE4 support

  make OPT='-O2 -DNDEBUG -msse -msse4.2'
  
  This makes CRC computation much faster, but
  binaries won't run on CPUs that don't support it.

* Latest release is 1.5.6.fb
Ability to switch to gcc 4.1.6 and also use jemalloc. Thanks for Chip for large amounts of help. Summary: Task ID: # Blame Rev: Test Plan: Revert Plan: Reviewers: chip Reviewed By: chip CC: sc, adsharma Differential Revision: https://reviews.facebook.net/D3225 2012-05-15 01:17:06 +00:00			`* How to compile using fbcode and jemalloc`
			`source fbcode.sh`
			`make`
SSE4 optimization Summary: This speeds up CRC computation significantly on hardware that supports it. Enabled via -msse4. Note: the binary won't be usable on older CPUs that don't support the instruction. Test Plan: crc32c_test Reviewers: dhruba Reviewed By: dhruba Differential Revision: https://reviews.facebook.net/D3201 2012-05-04 01:10:17 +00:00
			`* Compiling for CPUs with SSE4 support`

Enable SSE when building with fbcode support. Summary: fbcode build now support SSE instructions. Delete older version of the compile-helper fbcode.sh. This is subsumed by fbcode.gcc471.sh. Test Plan: run make check Reviewers: heyongqiang, MarkCallaghan Reviewed By: heyongqiang Differential Revision: https://reviews.facebook.net/D6057 2012-10-17 18:59:44 +00:00			`make OPT='-O2 -DNDEBUG -msse -msse4.2'`
SSE4 optimization Summary: This speeds up CRC computation significantly on hardware that supports it. Enabled via -msse4. Note: the binary won't be usable on older CPUs that don't support the instruction. Test Plan: crc32c_test Reviewers: dhruba Reviewed By: dhruba Differential Revision: https://reviews.facebook.net/D3201 2012-05-04 01:10:17 +00:00
			`This makes CRC computation much faster, but`
			`binaries won't run on CPUs that don't support it.`
Release version 1.4.0.fb. Summary: Test Plan: Reviewers: CC: Task ID: # Blame Rev: 2012-06-19 08:47:15 +00:00
Release 1.5.6.fb Summary: Test Plan: Reviewers: CC: Task ID: # Blame Rev: 2012-11-29 00:09:41 +00:00			`* Latest release is 1.5.6.fb`