korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2025-01-18 03:44:27 +08:00
Code Issues Packages Projects Releases Wiki Activity

KVM: selftests: Start at iteration 0 instead of -1

Browse Source 
Start at iteration 0 instead of -1 to avoid having to initialize
vcpu_last_completed_iteration when setting up vCPU threads. This
simplifies the next commit where we move vCPU thread initialization
out to a common helper.

No functional change intended.

Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20211111001257.1446428-2-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
David Matlack 2021-11-11 00:12:54 +00:00 committed by Paolo Bonzini
parent 13bbc70329
commit 36c5ad73d7
1 changed files with 3 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
tools/testing/selftests/kvm/access_tracking_perf_test.c
View File

@ -47,7 +47,7 @@
#include "guest_modes.h"
/* Global variable used to synchronize all of the vCPU threads. */
static int iteration = -1;
static int iteration;
/* Defines what vCPU threads should do during a given iteration. */
static enum {
@ -220,7 +220,7 @@ static void *vcpu_thread_main(void *arg)
struct perf_test_vcpu_args *vcpu_args = arg;
struct kvm_vm *vm = perf_test_args.vm;
int vcpu_id = vcpu_args->vcpu_id;
int current_iteration = -1;
int current_iteration = 0;
while (spin_wait_for_next_iteration(&current_iteration)) {
switch (READ_ONCE(iteration_work)) {
@ -303,11 +303,9 @@ static pthread_t *create_vcpu_threads(int vcpus)
vcpu_threads = malloc(vcpus * sizeof(vcpu_threads[0]));
TEST_ASSERT(vcpu_threads, "Failed to allocate vcpu_threads.");
for (i = 0; i < vcpus; i++) {
vcpu_last_completed_iteration[i] = iteration;
for (i = 0; i < vcpus; i++)
pthread_create(&vcpu_threads[i], NULL, vcpu_thread_main,
&perf_test_args.vcpu_args[i]);
}
return vcpu_threads;
}