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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/testing/selftests/bpf/benchs/run_bench_ringbufs.sh | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/bpf/benchs/run_bench_ringbufs.sh')
-rwxr-xr-x | tools/testing/selftests/bpf/benchs/run_bench_ringbufs.sh | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_ringbufs.sh b/tools/testing/selftests/bpf/benchs/run_bench_ringbufs.sh new file mode 100755 index 000000000..af4aa04ca --- /dev/null +++ b/tools/testing/selftests/bpf/benchs/run_bench_ringbufs.sh @@ -0,0 +1,75 @@ +#!/bin/bash + +set -eufo pipefail + +RUN_BENCH="sudo ./bench -w3 -d10 -a" + +function hits() +{ + echo "$*" | sed -E "s/.*hits\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+M\/s).*/\1/" +} + +function drops() +{ + echo "$*" | sed -E "s/.*drops\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+M\/s).*/\1/" +} + +function header() +{ + local len=${#1} + + printf "\n%s\n" "$1" + for i in $(seq 1 $len); do printf '='; done + printf '\n' +} + +function summarize() +{ + bench="$1" + summary=$(echo $2 | tail -n1) + printf "%-20s %s (drops %s)\n" "$bench" "$(hits $summary)" "$(drops $summary)" +} + +header "Single-producer, parallel producer" +for b in rb-libbpf rb-custom pb-libbpf pb-custom; do + summarize $b "$($RUN_BENCH $b)" +done + +header "Single-producer, parallel producer, sampled notification" +for b in rb-libbpf rb-custom pb-libbpf pb-custom; do + summarize $b "$($RUN_BENCH --rb-sampled $b)" +done + +header "Single-producer, back-to-back mode" +for b in rb-libbpf rb-custom pb-libbpf pb-custom; do + summarize $b "$($RUN_BENCH --rb-b2b $b)" + summarize $b-sampled "$($RUN_BENCH --rb-sampled --rb-b2b $b)" +done + +header "Ringbuf back-to-back, effect of sample rate" +for b in 1 5 10 25 50 100 250 500 1000 2000 3000; do + summarize "rb-sampled-$b" "$($RUN_BENCH --rb-b2b --rb-batch-cnt $b --rb-sampled --rb-sample-rate $b rb-custom)" +done +header "Perfbuf back-to-back, effect of sample rate" +for b in 1 5 10 25 50 100 250 500 1000 2000 3000; do + summarize "pb-sampled-$b" "$($RUN_BENCH --rb-b2b --rb-batch-cnt $b --rb-sampled --rb-sample-rate $b pb-custom)" +done + +header "Ringbuf back-to-back, reserve+commit vs output" +summarize "reserve" "$($RUN_BENCH --rb-b2b rb-custom)" +summarize "output" "$($RUN_BENCH --rb-b2b --rb-use-output rb-custom)" + +header "Ringbuf sampled, reserve+commit vs output" +summarize "reserve-sampled" "$($RUN_BENCH --rb-sampled rb-custom)" +summarize "output-sampled" "$($RUN_BENCH --rb-sampled --rb-use-output rb-custom)" + +header "Single-producer, consumer/producer competing on the same CPU, low batch count" +for b in rb-libbpf rb-custom pb-libbpf pb-custom; do + summarize $b "$($RUN_BENCH --rb-batch-cnt 1 --rb-sample-rate 1 --prod-affinity 0 --cons-affinity 0 $b)" +done + +header "Ringbuf, multi-producer contention" +for b in 1 2 3 4 8 12 16 20 24 28 32 36 40 44 48 52; do + summarize "rb-libbpf nr_prod $b" "$($RUN_BENCH -p$b --rb-batch-cnt 50 rb-libbpf)" +done + |