kernel.git/kernel/rcu/rcuscale.c, branch linux-5.12.yHosts the 0x221E linux distro kernel.
https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-5.12.y2020-11-07T01:13:51Zrcuscale: Prevent hangs for invalid arguments2020-11-07T01:13:51ZPaul E. McKenney2020-09-17T17:30:46Zurn:sha1:2f2214d43ccd27ac6d124287107c136a0f7c6053
If an rcuscale torture-test run is given a bad kvm.sh argument, the
test will complain to the console, which is good. What is bad is that
from the user's perspective, it will just hang for the time specified
by the --duration argument. This commit therefore forces an immediate
kernel shutdown if a rcu_scale_init()-time error occurs, thus avoiding
the appearance of a hang. It also forces a console splat in this case
to clearly indicate the presence of an error.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
rcuscale: Add RCU Tasks Trace2020-11-07T01:13:50ZPaul E. McKenney2020-09-09T19:27:03Zurn:sha1:899f317e4886f916ed21027177177c11b577cea1
This commit adds the ability to test performance and scalability of RCU
Tasks Trace updaters.
Reported-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
rcuperf: Change rcuperf to rcuscale2020-08-25T01:39:24ZPaul E. McKenney2020-08-12T04:18:12Zurn:sha1:4e88ec4a9eb17527e640b063f79e5b875733eb53
This commit further avoids conflation of rcuperf with the kernel's perf
feature by renaming kernel/rcu/rcuperf.c to kernel/rcu/rcuscale.c, and
also by similarly renaming the functions and variables inside this file.
This has the side effect of changing the names of the kernel boot
parameters, so kernel-parameters.txt and ver_functions.sh are also
updated. The rcutorture --torture type was also updated from rcuperf
to rcuscale.
[ paulmck: Fix bugs located by Stephen Rothwell. ]
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>