trawick 2003/04/04 04:46:02
Modified: . STATUS
Log:
update an entry on a solaris lock problem with information
about the system tuning requirements for dealing with it
Submitted by: Kristofer Spinka
Reviewed by: Jeff Trawick
Revision Changes Path
1.190 +22 -1 apr/STATUS
Index: STATUS
===================================================================
RCS file: /home/cvs/apr/STATUS,v
retrieving revision 1.189
retrieving revision 1.190
diff -u -r1.189 -r1.190
--- STATUS 31 Mar 2003 05:34:30 -0000 1.189
+++ STATUS 4 Apr 2003 12:46:01 -0000 1.190
@@ -303,6 +303,27 @@
This gives me more rationale for switching the default
interprocess lock mechanism to pthread (if available).
+ Explanation:
+ ============
+ The system imposed default limit of outstanding lock requests is
+ 512.
+ You can verify this by, in a contemporary version of Solaris:
+
+ # mdb -k
+ > tune_t_flckrec/D
+ tune_t_flckrec:
+ tune_t_flckrec: 512
+
+ This can be increased by adding the following to /etc/system:
+
+ set tune_t_flckrec=1024
+
+ and rebooting.
+
+ Of course "1024" can be any reasonable limit, although we do not know
+ what "reasonable" should be, so be conservative, only increase this
as
+ necessary.
+
* Generate a good bug report to send to the FreeBSD hackers that details
the problems we have seen with threads and system calls (specifically
sendfile data is corrupted). From our analysis so far, we don't think
