postgres

Commit Graph

Author	SHA1	Message	Date
Tatsuo Ishii	2fca2c05e7	Add -F option to set fillfactor for tellers, accounts and branches. Patch contributed by Pavan Deolasee. Along with Japanese doc modification by Tatsuo Ishii.	19 years ago
Tatsuo Ishii	e574f2a029	Enhance pgbench -l option to add timestamp. Patch contributed by Greg Smith. Along with Japanese doc updation by Tasuo Ishii. > This patch changes the way pgbench outputs its latency log files so that > every transaction gets a timestamp and notes which transaction type was > executed. It's a one-line change that just dumps some additional > information that was already sitting in that area of code. I also made a > couple of documentation corrections and clarifications on some of the more > confusing features of pgbench. > > It's straightforward to parse log files in this format to analyze what > happened during the test at a higher level than was possible with the > original format. You can find some rough sample code to convert this > latency format into CVS files and then into graphs at > http://www.westnet.com/~gsmith/content/postgresql/pgbench.htm which I'll > be expanding on once I get all my little patches sent in here.	19 years ago
Tatsuo Ishii	7e96269a82	Various pgbench enhancements. Patch contributed by ITAGAKI Takahiro. Also tweak README.pgbench/README.pgbench_jis: Remove history after pgbench was added to PostgreSQL contrib module. Those info was not only redundant since it has already been in CVS log, but also incomplete. -------------------------------------------------------------------------- The attached is a patch to optimize contrib/pgbench using new 8.3 features. - Use DROP IF EXISTS to suppress errors for initial loadings. - Use a combination of TRUNCATE and COPY to reduce WAL on creating the accounts table. Also, there are some cosmetic changes. - Change the output of -v option from "starting full vacuum..." to "starting vacuum accounts..." in reflection of the fact. - Shape duplicated error checks into executeStatement(). There is a big performance win in "COPY with no WAL" feature. Thanks for the efforts! --------------------------------------------------------------------------	19 years ago
Tatsuo Ishii	a5007d671a	pgbench: More fix with handling default scaling factor in the default scenarios. With multiple clinets, only the first client got the right scaling factor and this gave a illusion of better performance in case of the scaling factor greater than 1.	19 years ago
Tatsuo Ishii	ea21eea6a8	Change "tps" to "scale" to avoid confusion Fix bug with handling default scaling factor in the default scenarios	20 years ago
Tatsuo Ishii	0c57c832b9	New features contributed by Tomoaki Sato. - predefined variable "tps" The value of variable tps is taken from the scaling factor specified by -s option. - -D option Variable values can be defined by -D option. - \set command now allows arithmetic calculations.	20 years ago
Tatsuo Ishii	f50ae06e14	Allow multiple -f options. Make pgbench "script driven" to eliminate hard coded transaction scenario. (Tatsuo Ishii)	21 years ago
Tatsuo Ishii	9b19abd74f	Add -f option which enables to read SQL commands from a file. Patches Contributed by Tomoaki Sato.	21 years ago
Tatsuo Ishii	43f77c06bb	Patches from Yutaka Tanida. Create primary key indexes after data insertion to reduce initialization time.	22 years ago
Tatsuo Ishii	412893b416	Fix uninitialized memory bug Add support for PGHOST, PGPORT, PGUSER environment variables	23 years ago
Tom Lane	fd89de5156	Add note that scaling factor should be >= # of clients.	23 years ago
Tatsuo Ishii	cdf4b9aff2	Apply patches from Neil Conway. > Hi Tatsuo, > > I've attached a patch for the version of pgbench in CVS. It includes the > following changes: > > - fix some spelling mistakes, indentation stuff, etc. > > - minor code cleanup -- (void) args instead of (), etc. > > - allocate the state array dynamically, so that it is only as > large as needed. This reduces the memory consumption of pgbench > slightly, and makes a larger MAXCLIENTS setting possible > > - (the only controversial change) add an option "-l" to log > transaction latencies to a file. The "transaction latency" > is the time between when the BEGIN is issued and the transaction > commits. This is written to a file, along with the client # > and the transaction #. The data in the file can then be used > for things like: > > - consistency analysis: is the TPS the same through the > entire run of pgbench, or does it change? > > - more detailed stats: what is the average latency, worse-case > latency, best-case latency? > > - graphs: feed the data to gnuplot, graph latency versus. time > > - etc. > > I was going to store this data in memory and write it to disk > at the end of the pgbench run, but that isn't feasible because > the data can be very large: for example, ~70MB if benchmarking > 128 clients doing 100,000 transactions each. > > Cheers, > > Neil	24 years ago
Tatsuo Ishii	0d7c58a977	Update docs about new -N option	24 years ago
Tatsuo Ishii	0c124c5731	Add -N option which disables updation of branches and tellers tables. So there would be less contention with -N, that might be more realistic test.	24 years ago
Tatsuo Ishii	f8aa02eb85	"time" is now a reserved keyword(changed to "mtime").	25 years ago
Tatsuo Ishii	ba708ea3dc	Add -U, -P, -C options. See README.pgbench for more details.	25 years ago
Tom Lane	810c0b85d2	Update README's install instructions to agree with current reality.	25 years ago
Bruce Momjian	bad9ce7099	Add missing /contrib files	26 years ago

18 Commits (77a41e71a3550a438e579da170db86c61bd61e4b)