[PATCH] D21113: Add support for case-insensitive header lookup

Wed Jun 8 12:54:26 PDT 2016

hans added a comment.

In http://reviews.llvm.org/D21113#452558, @thakis wrote:

> Can you try building a few more files? Say, v8_base?

Well, that was depressing:

  Putting the sdk on a vfat fs:
  real    2m26.077s
  user    68m31.476s
  sys     1m25.702s

  Using the flag:
  real    9m5.179s
  user    69m3.417s
  sys     212m47.136s  <--- !

  Using the flag with bloom filters:
  real    3m1.046s
  user    69m5.328s
  sys     19m4.368s

It seems the filesystem wasn't so happy about 32 processes doing a lot of readdir() at the same time.

http://reviews.llvm.org/D21113