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@@ -10,9 +10,9 @@ debug=
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usage() {
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cat <<EOF
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-Usage: $0 [OPTIONS]
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+Usage: $0 [OPTIONS] [[cgroup]..]
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-Reclaim memory at fixed interval
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+Reclaim memory of cgroups at an fixed interval
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Options:
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-s <size> Memory to reclaim in one run. Available units: K, M
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@@ -126,9 +126,8 @@ calc_size_to_reclaim_kb() {
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echo $_size_kb
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}
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-reclaim() {
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- cgpath="/sys/fs/cgroup"
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- echo "$1" > "$cgpath/memory.reclaim"
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+iter_cgroup_sorted() {
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+ find "$1" -type d | sort
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}
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dump_reclaim_args() {
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@@ -146,15 +145,21 @@ wait_for_next_run() {
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sleep "$interval"
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}
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-start_reclaim() {
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- reclaim_size_kb="$(calc_size_to_reclaim_kb)"
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-
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- if ! reclaim "${reclaim_size_kb}K"; then
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- log_warn "unable to reclaim, status=$?"
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- return
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+reclaim() {
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+ if echo "$1" > "$2/memory.reclaim"; then
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+ log_info "reclaimed memory $1 in $2"
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fi
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+}
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+
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+start_reclaim() {
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+ local reclaim_size
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+ reclaim_size="$(calc_size_to_reclaim_kb)K"
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- log_info "reclaimed memory ${reclaim_size_kb}K"
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+ for path in "$@"; do
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+ for cgpath in $(iter_cgroup_sorted "$path"); do
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+ reclaim "$reclaim_size" "$cgpath"
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+ done
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+ done
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}
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reclaim_run() {
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@@ -163,7 +168,7 @@ reclaim_run() {
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[ -n "$debug" ] && dump_reclaim_args
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if should_reclaim; then
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- start_reclaim
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+ start_reclaim "$@"
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fi
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[ -n "$debug" ] && dump_memusage
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@@ -186,6 +191,6 @@ shift $((OPTIND - 1))
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init_reclaim_states
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while true; do
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- reclaim_run
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+ reclaim_run "$@"
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wait_for_next_run
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done
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