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89e59902c4
Brought to you by modernize -fix -test ./... Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
package userns
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import (
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"os"
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"testing"
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"github.com/opencontainers/runc/libcontainer/configs"
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)
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func BenchmarkSpawnProc(b *testing.B) {
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if os.Geteuid() != 0 {
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b.Skip("spawning user namespaced processes requires root")
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}
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// We can reuse the mapping as we call spawnProc() directly.
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mapping := Mapping{
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UIDMappings: []configs.IDMap{
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{ContainerID: 0, HostID: 1337, Size: 142},
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{ContainerID: 150, HostID: 0, Size: 1},
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{ContainerID: 442, HostID: 1111, Size: 12},
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{ContainerID: 1000, HostID: 9999, Size: 92},
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{ContainerID: 9999, HostID: 1000000, Size: 4},
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// Newer kernels support more than 5 entries, but stick to 5 here.
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},
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GIDMappings: []configs.IDMap{
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{ContainerID: 1, HostID: 2337, Size: 142},
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{ContainerID: 145, HostID: 6, Size: 1},
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{ContainerID: 200, HostID: 1000, Size: 12},
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{ContainerID: 1000, HostID: 9888, Size: 92},
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{ContainerID: 8999, HostID: 1000000, Size: 4},
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// Newer kernels support more than 5 entries, but stick to 5 here.
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},
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}
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procs := make([]*os.Process, 0, b.N)
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b.Cleanup(func() {
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for _, proc := range procs {
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if proc != nil {
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_ = proc.Kill()
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_, _ = proc.Wait()
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}
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}
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})
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for b.Loop() {
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proc, err := spawnProc(mapping)
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if err != nil {
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b.Error(err)
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}
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procs = append(procs, proc)
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}
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}
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