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Questions tagged [pgbench]

11 questions
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How to run pgbench from a pod without having to type the password every time [Kubernetes] [CloudNativePG]

I am a user of Kubernetes, and I am using the CloudNativePG operator version 1.20.1 with PostgreSQL. Currently, I am conducting tests on clusters using the pgbench tool. However, when I execute the tool from the console where Kubernetes is located,…
Vicent Pons Llopis
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Unexpected Number of deadtuples after several updates

I have a question about the number of deadtuples after an update scenario in PGSQL. Due to MVCC protocol in PGSQL, many updates cause the tables to bloat. We may track this with the number of dead tuples in the table. In the following scenario, I…
utku kalay
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pgbench benchmark rises using pgbouncer

I've got Postgres 13 and PGbouncer. When I make pgbench test, when I rise client connection and quantity of query, tps also rises. Why? For example: pgbench -U postgres -h .... -p 6544 datafactory -c 700 -j 8 -t 50 -S latency average = 1591.633…
Gerzzog
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pgbench : too many client connections for select()

I was working on benchmark testing for pg10 and pg14. I did the testing for 100 clients with 12 threads in pg14 I was getting following error, "pgbench:too many client connections for select()" (screen shot attached) The same was working fine in…
mathin0496
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PgBouncer - Server DNS lookup failed

I am trying to test PgBouncer connection with pgbench on a PostgreSQL server. But I'm getting error as closing because: server DNS lookup failed and at pgbench getting this message: pgbench -c 10 -t 10 -C -f…
yugck
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PostgreSQL pgbench error "pgbench: fatal: could not count number of branches: ERROR: relation "pgbench_branches" does not exist"

I am getting error like "pgbench: fatal: could not count number of branches: ERROR: relation "pgbench_branches" does not exist" when i ran the commmand "pgbench -c 20 -t 1000 -C -f d:\test_postgres\script.sql -p 5432 -U postgres -S Shiftlog" in…
Pavuluri Satishbabu
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pgbench select uuid for custom scripts

I am trying to benchmark a custom dataset with pgbench. all the records I want to select for have uuids as primary keys. Unfortunately all the samples snipets select random records by using random() function - presumably for sequential PKs. \set bid…
szabadkai
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Does Pgbench modify the database?

I'm trying to generate "locks" in my postgresql database, i used pgbench to create an activity in the database while lanching a vacuum full or reindex to generate some process "locks" and nothing happened ... so i'm not sure if pgbench creates a…
Firas Megrahi
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pgBench Fatal: need at least 2003 open files, but system limit is 1024

Am trying to run some testing using a connection pooler (pgBouncer). I am trying to run for 2000 clients via pgBench. When running the following: ./pgbench -h 172.1.1.9 pgbench -p 6432 --client=2000 --progress=30 --time=120 --jobs=2 -C -U pgbench I…
rdbmsNoob
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How to get P99 latency result using pgbench?

I am trying to use pgbench to perform a test on PolarDB for postgreSQL. This is the command I used to perform the test. pgbench -M prepared -r -c 16 -j 4 -T 30 -p 10001 -d pgbench -l And this is the result ... ... client 2 sending P0_10 client 2…
Matt
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How to use pgbench?

I have a table on pgadmin4 which consist of 100.000 lines and 23 columns.I need to benchmark postgresql on this specific table using pgbench,but i cant understand what parameters should i use.The database name is desdb and table called test.
Xaris Xaris
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