postgres

Commit Graph

Author	SHA1	Message	Date
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
Tatsuo Ishii	4571439297	Fix README in Japanese to sync with README.pgbench updated by Tom. (thanks!)	25 years ago
Bruce Momjian	bad9ce7099	Add missing /contrib files	26 years ago

7 Commits (229eebd5596fd3a2c77458eefab2fc220bbd7f50)