| Bug #29921 | MYSQLparse uses 3X more CPU in MySQL 5.0 than yyparse in MySQL 4.0 | ||
|---|---|---|---|
| Submitted: | 20 Jul 2007 3:39 | Modified: | 4 Mar 2008 22:29 |
| Reporter: | Mark Callaghan | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Parser | Severity: | S5 (Performance) |
| Version: | 5.0.37 | OS: | Any |
| Assigned to: | Marc ALFF | CPU Architecture: | Any |
| Tags: | bfsm_2007_08_02, bfsm_2007_10_18, Contribution, parser, performance, regression | ||
If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.
To split a large file:
- On *nix platforms use the split command e.g.
split -b 50MB <my_large_archive> <my_split_archive_prefix> - On windows use WinZip or a similar utility to split the large file
[13 Aug 2007 19:05]
Mark Callaghan
[11 Sep 2007 0:07]
Marc ALFF
GPROF profiling for 4.1
Attachment: perf-4.1.txt.gz (application/x-gzip, text), 127.24 KiB.
[11 Sep 2007 0:08]
Marc ALFF
GPROF profiling for 5.0.45
Attachment: perf-5.0.45.txt.gz (application/x-gzip, text), 144.20 KiB.
[11 Sep 2007 0:08]
Marc ALFF
GPROF profiling for 5.0.50
Attachment: perf-5.0.txt.gz (application/x-gzip, text), 144.70 KiB.
[11 Sep 2007 0:10]
Marc ALFF
time with gprof, 4.1
Attachment: time-4.1-gprof.log (text/x-log), 1.23 KiB.
[11 Sep 2007 0:11]
Marc ALFF
time with gprof, 5.0.45
Attachment: time-5.0.45-gprof.log (text/x-log), 1.38 KiB.
[11 Sep 2007 0:12]
Marc ALFF
time with gprof, 5.0.50
Attachment: time-5.0-gprof.log (text/x-log), 1.35 KiB.
[11 Sep 2007 0:14]
Marc ALFF
time results, 4.1
Attachment: time-4.1.log (text/x-log), 1.28 KiB.
[11 Sep 2007 0:14]
Marc ALFF
time results, 5.0.45
Attachment: time-5.0.45.log (text/x-log), 1.43 KiB.
[11 Sep 2007 0:15]
Marc ALFF
time results, 5.0.50
Attachment: time-5.0.log (text/x-log), 1.43 KiB.
