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Unlike prof_sample which is supported only with profiling mode active, prof_threshold is intended to be an always-supported allocation callback with much less overhead. The usage of the threshold allows performance critical callers to change program execution based on the callback: e.g. drop caches when memory becomes high or to predict the program is about to OOM ahead of time using peak memory watermarks.

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Shai Duvdevani 2025-01-29 15:25:10 -08:00 • committed by Qi Wang
parent ef8e512e29
commit 257e64b968
22 changed files with 246 additions and 0 deletions
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3
Makefile.in
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@ -145,6 +145,7 @@ C_SRCS := $(srcroot)src/jemalloc.c \
$(srcroot)src/prof_stack_range.c \
$(srcroot)src/prof_stats.c \
$(srcroot)src/prof_sys.c \
$(srcroot)src/prof_threshold.c \
$(srcroot)src/psset.c \
$(srcroot)src/rtree.c \
$(srcroot)src/safety_check.c \
@ -266,6 +267,8 @@ TESTS_UNIT := \
$(srcroot)test/unit/prof_stats.c \
$(srcroot)test/unit/prof_tctx.c \
$(srcroot)test/unit/prof_thread_name.c \
$(srcroot)test/unit/prof_threshold.c \
$(srcroot)test/unit/prof_threshold_small.c \
$(srcroot)test/unit/prof_sys_thread_name.c \
$(srcroot)test/unit/psset.c \
$(srcroot)test/unit/ql.c \