jit_profiling_support

If LLVM has the required functionality, emit the data needed to allow perf to profile functions generated by JIT. This writes out files to ~/.debug/jit/; the user is responsible for performing cleanup when desired. The default setting is off. Only superusers and users with the appropriate SET privilege can change this parameter at session start, and it cannot be changed at all within a session.

English manual coverage begins with PostgreSQL 7.4. Source history and runtime observations have their own recorded version boundaries.

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boot val: off
category: Developer Options
context: superuser-backend
doc same as: Unknown
documented: true
enumvals: Unknown
extra desc: Unknown
lang: en
max val: Unknown
metadata version: 18
min val: Unknown
name: jit_profiling_support
short desc: Register JIT-compiled functions with perf profiler.
source: pg-settings-source-snapshot
unit: Unknown
vartype: bool

Definition PG 18

If LLVM has the required functionality, emit the data needed to allow perf to profile functions generated by JIT. This writes out files to ~/.debug/jit/; the user is responsible for performing cleanup when desired. The default setting is off. Only superusers and users with the appropriate SET privilege can change this parameter at session start, and it cannot be changed at all within a session.

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Complete source facts

doc html

<p>
        If LLVM has the required functionality, emit the data needed to allow
        <span class="productname">perf</span> to profile functions generated by JIT.
        This writes out files to <code class="filename">~/.debug/jit/</code>; the
        user is responsible for performing cleanup when desired.
        The default setting is <code class="literal">off</code>.
        Only superusers and users with the appropriate <code class="literal">SET</code>
        privilege can change this parameter at session start,
        and it cannot be changed at all within a session.
       </p>

documentation revision

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Source references

Original manual reference

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Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:d1aab9aefddfe22567f64be262a34eeb213a48bc012db89918aa725acb70cd7c

Text language: en · wiki-repair-20261023:d1aab9aefddfe22567f64be262a34eeb213a48bc012db89918aa725acb70cd7c