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Add support for namespace pids in heap profile names

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This change adds support for writing pid namespaces to the filename of a
heap profile. When running with namespaces pids may reused across
namespaces and if mounts are shared where profiles are written there is
not a great way to differentiate profiles between pids.

Signed-off-by: Daniel Hodges <hodges.daniel.scott@gmail.com>
Signed-off-by: Daniel Hodges <hodgesd@fb.com>
This commit is contained in:
Daniel Hodges 2023-12-23 19:40:44 -05:00 • committed by Qi Wang
parent 83b075789b
commit 11038ff762
7 changed files with 93 additions and 10 deletions
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4
src/ctl.c
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@ -153,6 +153,7 @@ CTL_PROTO(opt_prof_final)
CTL_PROTO(opt_prof_leak)
CTL_PROTO(opt_prof_leak_error)
CTL_PROTO(opt_prof_accum)
CTL_PROTO(opt_prof_pid_namespace)
CTL_PROTO(opt_prof_recent_alloc_max)
CTL_PROTO(opt_prof_stats)
CTL_PROTO(opt_prof_sys_thread_name)
@ -507,6 +508,7 @@ static const ctl_named_node_t opt_node[] = {
{NAME("prof_leak"), CTL(opt_prof_leak)},
{NAME("prof_leak_error"), CTL(opt_prof_leak_error)},
{NAME("prof_accum"), CTL(opt_prof_accum)},
{NAME("prof_pid_namespace"), CTL(opt_prof_pid_namespace)},
{NAME("prof_recent_alloc_max"), CTL(opt_prof_recent_alloc_max)},
{NAME("prof_stats"), CTL(opt_prof_stats)},
{NAME("prof_sys_thread_name"), CTL(opt_prof_sys_thread_name)},
@ -2226,6 +2228,8 @@ CTL_RO_NL_CGEN(config_prof, opt_prof_thread_active_init,
CTL_RO_NL_CGEN(config_prof, opt_prof_bt_max, opt_prof_bt_max, unsigned)
CTL_RO_NL_CGEN(config_prof, opt_lg_prof_sample, opt_lg_prof_sample, size_t)
CTL_RO_NL_CGEN(config_prof, opt_prof_accum, opt_prof_accum, bool)
CTL_RO_NL_CGEN(config_prof, opt_prof_pid_namespace, opt_prof_pid_namespace,
bool)
CTL_RO_NL_CGEN(config_prof, opt_lg_prof_interval, opt_lg_prof_interval, ssize_t)
CTL_RO_NL_CGEN(config_prof, opt_prof_gdump, opt_prof_gdump, bool)
CTL_RO_NL_CGEN(config_prof, opt_prof_final, opt_prof_final, bool)