On Thu, Jan 25, 2018 at 6:18 AM, Paul E. McKenney <paul...@linux.vnet.ibm.com> wrote: > On Tue, Jan 23, 2018 at 03:59:31PM +0800, liangli...@huawei.com wrote: >> From: Lihao Liang <liangli...@huawei.com> >> >> Signed-off-by: Lihao Liang <liangli...@huawei.com> >> --- >> kernel/rcu/rcuperf.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/kernel/rcu/rcuperf.c b/kernel/rcu/rcuperf.c >> index ea80fa3e..baccc123 100644 >> --- a/kernel/rcu/rcuperf.c >> +++ b/kernel/rcu/rcuperf.c >> @@ -60,7 +60,7 @@ MODULE_AUTHOR("Paul E. McKenney >> <paul...@linux.vnet.ibm.com>"); >> #define VERBOSE_PERFOUT_ERRSTRING(s) \ >> do { if (verbose) pr_alert("%s" PERF_FLAG "!!! %s\n", perf_type, s); } >> while (0) >> >> -torture_param(bool, gp_exp, false, "Use expedited GP wait primitives"); >> +torture_param(bool, gp_exp, true, "Use expedited GP wait primitives"); > > This is fine as a convenience for internal testing, but the usual way > to make this happen is using the rcuperf.gp_exp kernel boot parameter. > Or was that not working for you? >
Sure. It should work if rcuperf.gp_exp=1 is added to the .boot files (it wouldn't work rcuperf.gp_exp=false is used). Thanks, Lihao. > Thanx, Paul > >> torture_param(int, holdoff, 10, "Holdoff time before test start (s)"); >> torture_param(int, nreaders, -1, "Number of RCU reader threads"); >> torture_param(int, nwriters, -1, "Number of RCU updater threads"); >> -- >> 2.14.1.729.g59c0ea183 >> >