mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-23 22:46:16 +02:00
56 lines
1.2 KiB
Bash
56 lines
1.2 KiB
Bash
source common.sh
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# First, test that -jN performs builds in parallel.
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echo "testing nix-build -j..."
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clearStore
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rm -f $SHARED.cur $SHARED.max
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outPath=$($nixbuild -j10000 parallel.nix)
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echo "output path is $outPath"
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text=$(cat "$outPath")
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if test "$text" != "abacade"; then exit 1; fi
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if test "$(cat $SHARED.cur)" != 0; then fail "wrong current process count"; fi
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if test "$(cat $SHARED.max)" != 3; then fail "not enough parallelism"; fi
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# Second, test that parallel invocations of nix-build perform builds
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# in parallel, and don't block waiting on locks held by the others.
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echo "testing multiple nix-build -j1..."
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clearStore
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rm -f $SHARED.cur $SHARED.max
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drvPath=$($nixinstantiate parallel.nix --argstr sleepTime 15)
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cmd="$nixstore -j1 -r $drvPath"
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$cmd &
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pid1=$!
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echo "pid 1 is $pid1"
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$cmd &
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pid2=$!
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echo "pid 2 is $pid2"
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$cmd &
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pid3=$!
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echo "pid 3 is $pid3"
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$cmd &
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pid4=$!
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echo "pid 4 is $pid4"
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wait $pid1 || fail "instance 1 failed: $?"
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wait $pid2 || fail "instance 2 failed: $?"
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wait $pid3 || fail "instance 3 failed: $?"
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wait $pid4 || fail "instance 4 failed: $?"
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if test "$(cat $SHARED.cur)" != 0; then fail "wrong current process count"; fi
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if test "$(cat $SHARED.max)" != 3; then fail "not enough parallelism"; fi
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