Changeset: 613b24c9dc93 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=613b24c9dc93
Modified Files:
ChangeLog.Mar2018
Branch: Mar2018
Log Message:
added changelog entry for mclient's new timing option
diffs (36 lines):
diff --git a/ChangeLog.Mar2018 b/ChangeLog.Mar2018
--- a/ChangeLog.Mar2018
+++ b/ChangeLog.Mar2018
@@ -1,6 +1,32 @@
# ChangeLog file for devel
# This file is updated with Maddlog
+* Wed Feb 14 2018 Stefan Manegold <stefan.maneg...@cwi.nl>
+- mclient's executing time profiling options and output format have
+ been changed. Instead of implicitly via the "--interactive"/"-i"
+ option (or when using and interactive mclient console), execution time
+ profiling is now controlled via an explicit "--timer=timermode"/"-t
+ timermode" command-line option, or a "\t timermode" command in the
+ interactive mclient console. The default (also in the interactive
+ mclient console) is now timermode "none", i.e., no timing information
+ is given. Timermode "clock" activates client-side wall-clock timing
+ ("clk") in "human-friendly" format much like the interactive mode did
+ before. Timermode "performance" also provides detailed server-side
+ timings: "sql" is the time to parse the SQL query, optimize the
+ logical relational plan and create the initial physical (MAL) plan;
+ "opt" is the time to optimize the physical (MAL) plan; "run" is the
+ time to execute the physical (MAL) plan. With timermode "performance"
+ all server-side timings and the client-side wall-clock time are given
+ in milliseconds (ms). Note that the client-measured wall-clock time
+ "clk" is reported per query only when options "--interactive" or
+ "--echo" are used, because only then does mclient send individual
+ lines (statements) of the SQL script to the server. Otherwise, mclient
+ sends the SQL script in large(r) batch(es) to the server, and, thus,
+ only the total wall-clock time per batch is measured and reported. The
+ server-measured detailed performance timings "sql", "opt", "run" are
+ always measured and reported per query. Also, all timing information
+ is now given on a separate line and set to stderr rather than stdout.
+
* Fri Feb 9 2018 Sjoerd Mullender <sjo...@acm.org>
- Some types and constants were moved from configure (and hence
monetdb_config.h) to gdk.h. In particular, the types "lng" and
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