Module Name: src
Committed By: rmind
Date: Tue Sep 24 23:45:16 UTC 2013
Modified Files:
src/lib/librumpuser: rumpuser_pth.c
Log Message:
rumpuser_rwlock: replace internal pthread_spin_lock (for protecting reader
count) with atomic operations. As pthread_spin_lock is not adaptive lock, it
can have hugely negative impact if contended here, especially with priority
inversions. Now contended rwlock(9) no longer falls flat in RUMP kernels.
To generate a diff of this commit:
cvs rdiff -u -r1.31 -r1.32 src/lib/librumpuser/rumpuser_pth.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
