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25b4da74a9
On a large system, it can be convenient to tell rcutorture to run several instances of the default scenarios. Currently, this requires explicitly listing them, for example, "--configs '2*SRCU-N 2*SRCU-P...'". Although this works, it is rather inconvenient. This commit therefore allows "CFLIST" to be specified to indicate the default list of scenarios called out in the relevant CFLIST file, for example, for RCU, tools/testing/selftests/rcutorture/configs/rcu/CFLIST. In addition, multipliers may be used to run multiple instances of all the scenarios. For example, on a 256-CPU system, "--configs '3*CFLIST'" would run three instances of each scenario concurrently with one CPU left over. Thus "--configs '3*CFLIST TINY01'" would exactly consume all 256 CPUs, which makes rcutorture's jitter feature more effective. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
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