Fix test for unset PPC_NUM_THREADS environment variable
#2907
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| 7s | |
| 7s | |
| 1m 52s | |
| 1m 15s | |
| 1m 46s | |
| 3m 14s | |
| 1m 31s | |
| 1m 55s | |
| 1m 11s | |
| 5m 36s | |
| 2m 36s | |
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| 42s | |
| 45s | |
| 46s | |
| 1m 30s | |
| 40s | |
| 1m 32s | |
| 1m 29s | |
| 52s | |
| 0s | |
| -1s | |
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| 0s | |
| 0s | |
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| 1m 5s | |
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| 33m 2s |