Re: BUG #18675: Postgres is not realasing memory causing OOM

From: Maciej Jaros <eccenux(at)gmail(dot)com>
To: Daniel Gustafsson <daniel(at)yesql(dot)se>, pgsql-bugs(at)lists(dot)postgresql(dot)org
Subject: Re: BUG #18675: Postgres is not realasing memory causing OOM
Date: 2024-10-28 18:16:47
Message-ID: 699c1599-d0f0-4efe-a7de-660604b28d4c@gmail.com
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Daniel Gustafsson (28.10.2024 14:34):
>> On 28 Oct 2024, at 09:30, PG Bug reporting form<noreply(at)postgresql(dot)org> wrote:
>> Hi. We have a DB server running on a VM hosted on Proxmox (ZFS). We recently
>> upgraded from PG10 to PG16 and noticed an increase in load and, most
>> importantly, **uncontrolled** RAM usage growth.
> Are you running with or without JIT?

Hi. Yes, JIT is enabled:
^                    name ^   value ^
|                     jit |      on |
|          jit_above_cost |  100000 |
|   jit_debugging_support |     off |
|        jit_dump_bitcode |     off |
|         jit_expressions |      on |
|   jit_inline_above_cost |  500000 |
| jit_optimize_above_cost |  500000 |
|   jit_profiling_support |     off |
|            jit_provider | llvmjit |
|     jit_tuple_deforming |      on |

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