9241c7fa35
`common.sh` - add common function to start fuzzers in parallel and quick sequential run add `get_testn` - get number of test to run in parallel Signed-off-by: Sebastian Brzezinka <sebastian.brzezinka@intel.com> Change-Id: I7c70b5221887c29b495a1632545877ca7cca0945 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16323 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
70 lines
1.6 KiB
Bash
Executable File
70 lines
1.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# SPDX-License-Identifier: BSD-3-Clause
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# Copyright (C) 2022 Intel Corporation
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# All rights reserved.
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#
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# Store pids of parallel fuzzer tests
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pids=()
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function cleanup() {
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rm -rf "$@"
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# Make sure that there is no process left hanging
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kill -9 "${pids[@]}" || :
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}
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function get_testn() {
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local fuzz_num=$1
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local mem_size=$2
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local nproc
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nproc=$(nproc)
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# Choose lower value, best case scenario is one test per core
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local testn=$((fuzz_num < nproc ? fuzz_num : nproc))
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export HUGEMEM=$((mem_size * testn))
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setup
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TESTN=$testn
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}
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function start_llvm_fuzz_all() {
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local testn=$1 # Number of test to run in parallel
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local fuzz_num=$2 # Number of fuzzer tests
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local time=$3 # Time available for all fuzzers
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local core
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# Calculate time for a single test and multiply it by number
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# of test execute in parallel and round it up to 1 sek per test
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timen=$(printf %d $(((time / fuzz_num) * testn)))
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timen=$((timen == 0 ? 1 : timen))
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for ((i = 0; i < fuzz_num; i++)); do
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core=$(printf "0x%x" $((0x1 << (i % testn))))
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start_llvm_fuzz $i $timen $core &> $output_dir/llvm/llvm_"$FUZZER"_$i.txt &
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pids+=($!)
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# Wait for processes to finish
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if (((i + 1) % testn == 0 || fuzz_num - i - 1 == 0)); then
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(
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sleep $((timen * 10 + 100))
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echo "Timeout $time"
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exit 1
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) &
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timeout_pid=$!
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for pid in "${pids[@]}"; do
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wait $pid
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done
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kill $timeout_pid || :
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pids=()
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fi
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done
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}
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function start_llvm_fuzz_short() {
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local fuzz_num=$1
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local time=$2
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for ((i = 0; i < fuzz_num; i++)); do
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start_llvm_fuzz $i $time 0x1
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done
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}
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