Re: Lock contention high

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On Tue, 2021-10-12 at 13:05 +0530, Ashkil Dighin wrote:
> Perf data for 24vu(TPC-C)
> --------------------------------
> 
>       18.99%  postgres  postgres            [.] LWLockAcquire
>      7.09%  postgres  postgres            [.] _bt_compare
>      8.66%  postgres  postgres            [.] LWLockRelease
>      2.28%  postgres  postgres            [.] GetSnapshotData
>      2.25%  postgres  postgres            [.] hash_search_with_hash_value
>      2.11%  postgres  postgres            [.] XLogInsertRecord
>      1.98%  postgres  postgres            [.] PinBuffer
> 
> 1.Is there a way to tune the lock contention ?

How many concurrent sesions are you running?

Yours,
Laurenz Albe
-- 
Cybertec | https://www.cybertec-postgresql.com






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