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2019-03-26tools/.../rcutorture: Convert to SPDX license identifierPaul E. McKenney
Replace the license boiler plate with a SPDX license identifier. While in the area, update an email address and add copyright notices. Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
2018-02-20torture: Provide more sensible nreader/nwriter defaults for rcuperfPaul E. McKenney
The default values for nreader and nwriter are apparently not all that user-friendly, resulting in people doing scalability tests that ran all runs at large scale. This commit therefore makes both the nreaders and nwriters module default to the number of CPUs, and adds a comment to rcuperf.c stating that the number of CPUs should be specified using the nr_cpus kernel boot parameter. This commit also eliminates the redundant rcuperf scripting specification of default values for these parameters. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-12-11torture: Eliminate torture_runnable and perf_runnablePaul E. McKenney
The purpose of torture_runnable is to allow rcutorture and locktorture to be started and stopped via sysfs when they are built into the kernel (as in not compiled as loadable modules). However, the 0444 permissions for both instances of torture_runnable prevent this use case from ever being put into practice. Given that there have been no complaints about this deficiency, it is reasonable to conclude that no one actually makes use of this sysfs capability. The perf_runnable module parameter for rcuperf is in the same situation. This commit therefore removes both torture_runnable instances as well as perf_runnable. Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-03-31rcutorture: Update scripting to accommodate rcuperfPaul E. McKenney
This commit adds the scripting changes to add support for the shiny new rcuperf kernel module. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>