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| -rw-r--r-- | doc/src/sgml/monitoring.sgml | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml index f5dce009fff..7bd21a74b42 100644 --- a/doc/src/sgml/monitoring.sgml +++ b/doc/src/sgml/monitoring.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/monitoring.sgml,v 1.70 2009/06/17 21:58:49 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/monitoring.sgml,v 1.71 2009/06/26 22:08:17 tgl Exp $ --> <chapter id="monitoring"> <title>Monitoring Database Activity</title> @@ -1568,6 +1568,17 @@ Commit 70 Total time (ns) 2312105013 </screen> </para> + + <note> + <para> + SystemTap uses a different notation for trace scripts than DTrace does, + even though the underlying trace points are compatible. One point worth + noting is that at this writing, SystemTap scripts must reference probe + names using double underlines in place of hyphens. This is expected to + be fixed in future SystemTap releases. + </para> + </note> + <para> You should remember that DTrace scripts need to be carefully written and debugged, otherwise the trace information collected might @@ -1576,6 +1587,7 @@ Total time (ns) 2312105013 discussing information found using dynamic tracing, be sure to enclose the script used to allow that too to be checked and discussed. </para> + <para> More example scripts can be found in the PgFoundry <ulink url="http://pgfoundry.org/projects/dtrace/">dtrace project</ulink>. |