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The maxcpus= kernel boot parameter limits the number of CPUs brought online at boot time, but it does nothing to prevent additional CPUs from being brought up later. Placing a hard cap on the total number of CPUs is instead the job of the nr_cpus= boot parameter. This commit therefore switches the configfrag_boot_cpus() shell function from maxcpus= to nr_cpus=. This commit also adds a nr_cpus=43 kernel parameter to RCU's TREE01 test scenario, but retains the maxcpus=8 kernel parameter in order to test the ability of RCU expedited grace periods to handle new CPUs coming online for the first time during grace-period initialization. Finally, this commit makes the torture scheduling allow maxcpus= to override other means of specifying the number of CPUs to allow for. This last works because the torture kernel modules size their workloads based on the number of CPUs present at the start of the test, not the ultimate number of CPUs. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> |
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| .. | ||
| config2frag.sh | ||
| config_override.sh | ||
| configcheck.sh | ||
| configinit.sh | ||
| configNR_CPUS.sh | ||
| cpus2use.sh | ||
| functions.sh | ||
| jitter.sh | ||
| kvm-build.sh | ||
| kvm-recheck-lock.sh | ||
| kvm-recheck-rcu.sh | ||
| kvm-recheck-rcuperf-ftrace.sh | ||
| kvm-recheck-rcuperf.sh | ||
| kvm-recheck.sh | ||
| kvm-test-1-run.sh | ||
| kvm.sh | ||
| parse-build.sh | ||
| parse-console.sh | ||
| parse-torture.sh | ||