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(parent: 89bc1a6) | patch
PR11575: lengthen TRYLOCKDELAY
authorFrank Ch. Eigler <fche@elastic.org>
Thu, 6 May 2010 17:04:11 +0000 (13:04 -0400)
committerFrank Ch. Eigler <fche@elastic.org>
Thu, 6 May 2010 17:04:11 +0000 (13:04 -0400)
commit26f62be4d9b2cfc975a07b96b988da2a62c30b71
tree0f60c6e736aea48e15b62bfc05a91c7f22fe4408tree
parent89bc1a6a568a40ea18f7b3325a2dbd96b0da400ccommit | diff
PR11575: lengthen TRYLOCKDELAY

Change default timeout for global variable locks to apprx. 1 ms,
in 10us chunks.  TRYLOCKDELAY now measures microseconds.

* translate.cxx (translate_pass): Change TRYLOCKDELAY and
  MAXTRYLOCK default values.
* runtime/probe_lock.h (stp_lock_probe): Use udelay() rather than
  ndelay().
* runtime/time.c (STP_TIMELOCK*): New macros just for time seqlock
  timeout purposes.  Expected contention is negligible here.
runtime/probe_lock.h diff | blob | blame | history
runtime/time.c diff | blob | blame | history
translate.cxx diff | blob | blame | history
systemtap: system-wide probe/trace tool
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