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2e6690d4f7
Add a multi-producer benchmark for perfbuf to complement the existing ringbuf multi-producer test. Unlike ringbuf which uses a shared buffer and experiences contention, perfbuf uses per-CPU buffers so the test measures scaling behavior rather than contention. This allows developers to compare perfbuf vs ringbuf performance under multi-producer workloads when choosing between the two for their systems. Signed-off-by: Gyutae Bae <gyutae.bae@navercorp.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20260120090716.82927-1-gyutae.opensource@navercorp.com
61 lines
2.3 KiB
Bash
Executable File
61 lines
2.3 KiB
Bash
Executable File
#!/bin/bash
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source ./benchs/run_common.sh
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set -eufo pipefail
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RUN_RB_BENCH="$RUN_BENCH -c1"
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header "Single-producer, parallel producer"
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for b in rb-libbpf rb-custom pb-libbpf pb-custom; do
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summarize $b "$($RUN_RB_BENCH $b)"
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done
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header "Single-producer, parallel producer, sampled notification"
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for b in rb-libbpf rb-custom pb-libbpf pb-custom; do
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summarize $b "$($RUN_RB_BENCH --rb-sampled $b)"
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done
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header "Single-producer, back-to-back mode"
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for b in rb-libbpf rb-custom pb-libbpf pb-custom; do
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summarize $b "$($RUN_RB_BENCH --rb-b2b $b)"
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summarize $b-sampled "$($RUN_RB_BENCH --rb-sampled --rb-b2b $b)"
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done
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header "Ringbuf back-to-back, effect of sample rate"
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for b in 1 5 10 25 50 100 250 500 1000 2000 3000; do
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summarize "rb-sampled-$b" "$($RUN_RB_BENCH --rb-b2b --rb-batch-cnt $b --rb-sampled --rb-sample-rate $b rb-custom)"
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done
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header "Perfbuf back-to-back, effect of sample rate"
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for b in 1 5 10 25 50 100 250 500 1000 2000 3000; do
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summarize "pb-sampled-$b" "$($RUN_RB_BENCH --rb-b2b --rb-batch-cnt $b --rb-sampled --rb-sample-rate $b pb-custom)"
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done
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header "Ringbuf back-to-back, reserve+commit vs output"
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summarize "reserve" "$($RUN_RB_BENCH --rb-b2b rb-custom)"
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summarize "output" "$($RUN_RB_BENCH --rb-b2b --rb-use-output rb-custom)"
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header "Ringbuf sampled, reserve+commit vs output"
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summarize "reserve-sampled" "$($RUN_RB_BENCH --rb-sampled rb-custom)"
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summarize "output-sampled" "$($RUN_RB_BENCH --rb-sampled --rb-use-output rb-custom)"
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header "Single-producer, consumer/producer competing on the same CPU, low batch count"
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for b in rb-libbpf rb-custom pb-libbpf pb-custom; do
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summarize $b "$($RUN_RB_BENCH --rb-batch-cnt 1 --rb-sample-rate 1 --prod-affinity 0 --cons-affinity 0 $b)"
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done
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header "Ringbuf, multi-producer contention"
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for b in 1 2 3 4 8 12 16 20 24 28 32 36 40 44 48 52; do
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summarize "rb-libbpf nr_prod $b" "$($RUN_RB_BENCH -p$b --rb-batch-cnt 50 rb-libbpf)"
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done
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header "Perfbuf, multi-producer"
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for b in 1 2 3 4 8 12 16 20 24 28 32 36 40 44 48 52; do
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summarize "pb-libbpf nr_prod $b" "$($RUN_RB_BENCH -p$b --rb-batch-cnt 50 --rb-sample-rate 50 pb-libbpf)"
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done
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header "Ringbuf, multi-producer contention in overwrite mode, no consumer"
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for b in 1 2 3 4 8 12 16 20 24 28 32 36 40 44 48 52; do
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summarize "rb-prod nr_prod $b" "$($RUN_BENCH -p$b --rb-batch-cnt 50 --rb-overwrite --rb-bench-producer rb-libbpf)"
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done
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