From e2f950ef2e3d9c727c5877110b847f5fc97aeb0c Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Mon, 27 Jan 2025 15:59:53 -0500 Subject: [PATCH] testing/raix-tree/maple: Increase readers and reduce delay for faster machines Add more threads and reduce the timing of the readers to increase the possibility of catching the rcu changes. The test does not pass unless the reader is seen. Signed-off-by: Liam R. Howlett --- tools/testing/radix-tree/maple.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/tools/testing/radix-tree/maple.c b/tools/testing/radix-tree/maple.c index dc8e40b94c3f..3717d76f8f0a 100644 --- a/tools/testing/radix-tree/maple.c +++ b/tools/testing/radix-tree/maple.c @@ -35062,7 +35062,7 @@ void run_check_rcu_slowread(struct maple_tree *mt, struct rcu_test_struct *vals) int i; void *(*function)(void *); - pthread_t readers[20]; + pthread_t readers[30]; unsigned int index = vals->index; mt_set_in_rcu(mt); @@ -35080,14 +35080,14 @@ void run_check_rcu_slowread(struct maple_tree *mt, struct rcu_test_struct *vals) } } - usleep(5); /* small yield to ensure all threads are at least started. */ + usleep(3); /* small yield to ensure all threads are at least started. */ while (index <= vals->last) { mtree_store(mt, index, (index % 2 ? vals->entry2 : vals->entry3), GFP_KERNEL); index++; - usleep(5); + usleep(2); } while (i--) @@ -35098,6 +35098,7 @@ void run_check_rcu_slowread(struct maple_tree *mt, struct rcu_test_struct *vals) MT_BUG_ON(mt, !vals->seen_entry3); MT_BUG_ON(mt, !vals->seen_both); } + static noinline void __init check_rcu_simulated(struct maple_tree *mt) { unsigned long i, nr_entries = 1000; -- 2.50.1