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Long distance memory overflow issue

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Problem: The memory will slowly increase with the drawing until restarting.
Observation: GC analysis shows that no occupation has occurred, so it is suspected to be a problem with the underlying allocator.
Reason: Under Linux, glibc is used to allocate memory. glibc uses brk and mmap to allocate memory, and the memory allocated by brk cannot be released until the high-address memory is released. That is to say, if you apply for two pieces of memory A and B through brk, it is impossible to release A before B is released, and it is still occupied by the process. Check the suspected "memory leak" through TOP.
So I replaced TCMalloc, but found that libtcmalloc_minimal could not find ptthread_Key_Create. After analysis, it was found that pthread was not entered during compilation.
This commit is contained in:
fuchen.ljl 2023-12-06 20:23:56 +08:00 committed by GitHub
parent 42dbcad3ef
commit 4d56383025
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1 changed files with 23 additions and 7 deletions
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30
webui.sh
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@ -222,13 +222,29 @@ fi
# Try using TCMalloc on Linux
prepare_tcmalloc() {
if [[ "${OSTYPE}" == "linux"* ]] && [[ -z "${NO_TCMALLOC}" ]] && [[ -z "${LD_PRELOAD}" ]]; then
TCMALLOC="$(PATH=/usr/sbin:$PATH ldconfig -p | grep -Po "libtcmalloc(_minimal|)\.so\.\d" | head -n 1)"
if [[ ! -z "${TCMALLOC}" ]]; then
echo "Using TCMalloc: ${TCMALLOC}"
export LD_PRELOAD="${TCMALLOC}"
else
printf "\e[1m\e[31mCannot locate TCMalloc (improves CPU memory usage)\e[0m\n"
fi
# Define Tcmalloc Libs arrays
TCMALLOC_LIBS=("libtcmalloc(_minimal|)\.so\.\d" "libtcmalloc\.so\.\d")
# Traversal array
for lib in "${TCMALLOC_LIBS[@]}"
do
#Determine which type of tcmalloc library the library supports
TCMALLOC="$(PATH=/usr/sbin:$PATH ldconfig -p | grep -P $lib | head -n 1)"
TC_INFO=(${TCMALLOC//=>/})
if [[ ! -z "${TC_INFO}" ]]; then
echo "Using TCMalloc: ${TC_INFO}"
#Determine if the library is linked to libptthread and resolve undefined symbol: ptthread_Key_Create
if ldd ${TC_INFO[2]} | grep -q 'libpthread'; then
echo "$TC_INFO is linked with libpthread,execute LD_PRELOAD=${TC_INFO}"
export LD_PRELOAD="${TC_INFO}"
break
else
echo "$TC_INFO is not linked with libpthreadand will trigger undefined symbol: ptthread_Key_Create error"
fi
else
printf "\e[1m\e[31mCannot locate TCMalloc (improves CPU memory usage)\e[0m\n"
fi
done
fi
}