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Re: git diff looping?

From
Brandon Casey <casey@nrlssc.navy.mil>
Date
Jun 16, 2009, 17:35 UTC
Message-ID
<RFQLUdKWnVWgwwX0qsqUhC-pl9v39aFOKMpTbbABiCEXczTo26fVow@cipher.nrlssc.navy.mil>
In-Reply-To
<20090616171531.GA17538@coredump.intra.peff.net>
Jeff King wrote:
Show 10 quoted lines
> On Tue, Jun 16, 2009 at 09:51:24AM -0700, Junio C Hamano wrote:
> 
>>> I can reproduce the problem on Solaris 8 using git v1.6.3. It seems to
>>> be caused by a horribly slow system regex implementation; it really
>>> chokes on the regex we use to find the "funcname" line for java files.
>> Hmm.  Is running under LC_ALL=C LANG=C _with_ the slow system regex help?
> 
> No, it remains extremely slow (it is possible that it _is_ faster,
> though, but I never managed to run either case to completion; they are
> both clearly orders of magnitude off of acceptable).

I haven't tried setting LC_ALL, LANG, but this Solaris regex is MANY orders of magnitude slower. I've been running your example diff on the egit repository for 2 hours and it still hasn't finished. The compat/regex version finished in 3 seconds. Solaris 10 x86.

-brandon
Previous: Jeff KingNext: John Bito
Message 18 of 37 in “git diff looping?”
  1. John BitoJun 16, 2009
  2. Jeff EplerJun 16, 2009
  3. John BitoJun 16, 2009
  4. Jeff KingJun 16, 2009
  5. Jeff KingJun 16, 2009
  6. 1/2 Makefile: refactor regex compat supportJeff King, Jun 16, 2009
  7. Johannes SixtJun 16, 2009
  8. Jeff KingJun 16, 2009
  9. 1/2 Makefile: refactor regex compat supportJeff King, Jun 16, 2009
  10. 2/2 Makefile: use compat regex on SolarisJeff King, Jun 16, 2009
  11. Brandon CaseyJun 16, 2009
  12. Mike RalphsonJun 17, 2009
  13. Mike RalphsonJun 17, 2009
  14. 2/2 Makefile: use compat regex on SolarisJeff King, Jun 16, 2009
  15. John BitoJun 16, 2009
  16. Junio C HamanoJun 16, 2009
  17. Jeff KingJun 16, 2009
  18. Brandon CaseyJun 16, 2009
  19. John BitoJun 16, 2009
  20. Jeff KingJun 16, 2009
  21. Brandon CaseyJun 16, 2009
  22. Paolo BonziniJun 17, 2009
  23. Jeff KingJun 17, 2009
  24. Paolo BonziniJun 17, 2009
  25. Andreas EricssonJun 17, 2009
  26. Paolo BonziniJun 17, 2009
  27. Andreas EricssonJun 17, 2009
  28. Paolo BonziniJun 17, 2009
  29. avoid exponential regex match for java and objc function namesPaolo Bonzini, Jun 17, 2009
  30. demerphqJun 17, 2009
  31. Jeff KingJun 17, 2009
  32. demerphqJun 17, 2009
  33. Paolo BonziniJun 17, 2009
  34. Junio C HamanoJun 17, 2009
  35. Paolo BonziniJun 18, 2009
  36. John BitoJun 16, 2009
  37. Jeff KingJun 16, 2009

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