/* Host variables */
static u64 dirty_log_manual_caps;
static bool host_quit;
-static uint64_t iteration;
-static uint64_t vcpu_last_completed_iteration[KVM_MAX_VCPUS];
+static int iteration;
+static int vcpu_last_completed_iteration[KVM_MAX_VCPUS];
static void *vcpu_worker(void *data)
{
run = vcpu_state(vm, vcpu_id);
while (!READ_ONCE(host_quit)) {
- uint64_t current_iteration = READ_ONCE(iteration);
+ int current_iteration = READ_ONCE(iteration);
clock_gettime(CLOCK_MONOTONIC, &start);
ret = _vcpu_run(vm, vcpu_id);
- ts_diff = timespec_diff_now(start);
+ ts_diff = timespec_elapsed(start);
TEST_ASSERT(ret == 0, "vcpu_run failed: %d\n", ret);
TEST_ASSERT(get_ucall(vm, vcpu_id, NULL) == UCALL_SYNC,
pr_debug("Got sync event from vCPU %d\n", vcpu_id);
vcpu_last_completed_iteration[vcpu_id] = current_iteration;
- pr_debug("vCPU %d updated last completed iteration to %lu\n",
+ pr_debug("vCPU %d updated last completed iteration to %d\n",
vcpu_id, vcpu_last_completed_iteration[vcpu_id]);
if (current_iteration) {
pages_count += vcpu_args->pages;
total = timespec_add(total, ts_diff);
- pr_debug("vCPU %d iteration %lu dirty memory time: %ld.%.9lds\n",
+ pr_debug("vCPU %d iteration %d dirty memory time: %ld.%.9lds\n",
vcpu_id, current_iteration, ts_diff.tv_sec,
ts_diff.tv_nsec);
} else {
- pr_debug("vCPU %d iteration %lu populate memory time: %ld.%.9lds\n",
+ pr_debug("vCPU %d iteration %d populate memory time: %ld.%.9lds\n",
vcpu_id, current_iteration, ts_diff.tv_sec,
ts_diff.tv_nsec);
}
}
avg = timespec_div(total, vcpu_last_completed_iteration[vcpu_id]);
- pr_debug("\nvCPU %d dirtied 0x%lx pages over %lu iterations in %ld.%.9lds. (Avg %ld.%.9lds/iteration)\n",
+ pr_debug("\nvCPU %d dirtied 0x%lx pages over %d iterations in %ld.%.9lds. (Avg %ld.%.9lds/iteration)\n",
vcpu_id, pages_count, vcpu_last_completed_iteration[vcpu_id],
total.tv_sec, total.tv_nsec, avg.tv_sec, avg.tv_nsec);
unsigned long iterations;
uint64_t phys_offset;
int wr_fract;
+ bool partition_vcpu_memory_access;
+ enum vm_mem_backing_src_type backing_src;
};
static void run_test(enum vm_guest_mode mode, void *arg)
struct kvm_enable_cap cap = {};
struct timespec clear_dirty_log_total = (struct timespec){0};
- vm = perf_test_create_vm(mode, nr_vcpus, guest_percpu_mem_size);
+ vm = perf_test_create_vm(mode, nr_vcpus, guest_percpu_mem_size,
+ p->backing_src);
perf_test_args.wr_fract = p->wr_fract;
vcpu_threads = malloc(nr_vcpus * sizeof(*vcpu_threads));
TEST_ASSERT(vcpu_threads, "Memory allocation failed");
- perf_test_setup_vcpus(vm, nr_vcpus, guest_percpu_mem_size);
+ perf_test_setup_vcpus(vm, nr_vcpus, guest_percpu_mem_size,
+ p->partition_vcpu_memory_access);
sync_global_to_guest(vm, perf_test_args);
clock_gettime(CLOCK_MONOTONIC, &start);
for (vcpu_id = 0; vcpu_id < nr_vcpus; vcpu_id++) {
+ vcpu_last_completed_iteration[vcpu_id] = -1;
+
pthread_create(&vcpu_threads[vcpu_id], NULL, vcpu_worker,
&perf_test_args.vcpu_args[vcpu_id]);
}
- /* Allow the vCPU to populate memory */
- pr_debug("Starting iteration %lu - Populating\n", iteration);
- while (READ_ONCE(vcpu_last_completed_iteration[vcpu_id]) != iteration)
- pr_debug("Waiting for vcpu_last_completed_iteration == %lu\n",
- iteration);
+ /* Allow the vCPUs to populate memory */
+ pr_debug("Starting iteration %d - Populating\n", iteration);
+ for (vcpu_id = 0; vcpu_id < nr_vcpus; vcpu_id++) {
+ while (READ_ONCE(vcpu_last_completed_iteration[vcpu_id]) !=
+ iteration)
+ ;
+ }
- ts_diff = timespec_diff_now(start);
+ ts_diff = timespec_elapsed(start);
pr_info("Populate memory time: %ld.%.9lds\n",
ts_diff.tv_sec, ts_diff.tv_nsec);
clock_gettime(CLOCK_MONOTONIC, &start);
vm_mem_region_set_flags(vm, PERF_TEST_MEM_SLOT_INDEX,
KVM_MEM_LOG_DIRTY_PAGES);
- ts_diff = timespec_diff_now(start);
+ ts_diff = timespec_elapsed(start);
pr_info("Enabling dirty logging time: %ld.%.9lds\n\n",
ts_diff.tv_sec, ts_diff.tv_nsec);
clock_gettime(CLOCK_MONOTONIC, &start);
iteration++;
- pr_debug("Starting iteration %lu\n", iteration);
+ pr_debug("Starting iteration %d\n", iteration);
for (vcpu_id = 0; vcpu_id < nr_vcpus; vcpu_id++) {
- while (READ_ONCE(vcpu_last_completed_iteration[vcpu_id]) != iteration)
- pr_debug("Waiting for vCPU %d vcpu_last_completed_iteration == %lu\n",
- vcpu_id, iteration);
+ while (READ_ONCE(vcpu_last_completed_iteration[vcpu_id])
+ != iteration)
+ ;
}
- ts_diff = timespec_diff_now(start);
+ ts_diff = timespec_elapsed(start);
vcpu_dirty_total = timespec_add(vcpu_dirty_total, ts_diff);
- pr_info("Iteration %lu dirty memory time: %ld.%.9lds\n",
+ pr_info("Iteration %d dirty memory time: %ld.%.9lds\n",
iteration, ts_diff.tv_sec, ts_diff.tv_nsec);
clock_gettime(CLOCK_MONOTONIC, &start);
kvm_vm_get_dirty_log(vm, PERF_TEST_MEM_SLOT_INDEX, bmap);
- ts_diff = timespec_diff_now(start);
+ ts_diff = timespec_elapsed(start);
get_dirty_log_total = timespec_add(get_dirty_log_total,
ts_diff);
- pr_info("Iteration %lu get dirty log time: %ld.%.9lds\n",
+ pr_info("Iteration %d get dirty log time: %ld.%.9lds\n",
iteration, ts_diff.tv_sec, ts_diff.tv_nsec);
if (dirty_log_manual_caps) {
kvm_vm_clear_dirty_log(vm, PERF_TEST_MEM_SLOT_INDEX, bmap, 0,
host_num_pages);
- ts_diff = timespec_diff_now(start);
+ ts_diff = timespec_elapsed(start);
clear_dirty_log_total = timespec_add(clear_dirty_log_total,
ts_diff);
- pr_info("Iteration %lu clear dirty log time: %ld.%.9lds\n",
+ pr_info("Iteration %d clear dirty log time: %ld.%.9lds\n",
iteration, ts_diff.tv_sec, ts_diff.tv_nsec);
}
}
- /* Tell the vcpu thread to quit */
- host_quit = true;
- for (vcpu_id = 0; vcpu_id < nr_vcpus; vcpu_id++)
- pthread_join(vcpu_threads[vcpu_id], NULL);
-
/* Disable dirty logging */
clock_gettime(CLOCK_MONOTONIC, &start);
vm_mem_region_set_flags(vm, PERF_TEST_MEM_SLOT_INDEX, 0);
- ts_diff = timespec_diff_now(start);
+ ts_diff = timespec_elapsed(start);
pr_info("Disabling dirty logging time: %ld.%.9lds\n",
ts_diff.tv_sec, ts_diff.tv_nsec);
+ /* Tell the vcpu thread to quit */
+ host_quit = true;
+ for (vcpu_id = 0; vcpu_id < nr_vcpus; vcpu_id++)
+ pthread_join(vcpu_threads[vcpu_id], NULL);
+
avg = timespec_div(get_dirty_log_total, p->iterations);
pr_info("Get dirty log over %lu iterations took %ld.%.9lds. (Avg %ld.%.9lds/iteration)\n",
p->iterations, get_dirty_log_total.tv_sec,
{
puts("");
printf("usage: %s [-h] [-i iterations] [-p offset] "
- "[-m mode] [-b vcpu bytes] [-v vcpus]\n", name);
+ "[-m mode] [-b vcpu bytes] [-v vcpus] [-o] [-s mem type]\n", name);
puts("");
printf(" -i: specify iteration counts (default: %"PRIu64")\n",
TEST_HOST_LOOP_N);
" 1/<fraction of pages to write>.\n"
" (default: 1 i.e. all pages are written to.)\n");
printf(" -v: specify the number of vCPUs to run.\n");
+ printf(" -o: Overlap guest memory accesses instead of partitioning\n"
+ " them into a separate region of memory for each vCPU.\n");
+ printf(" -s: specify the type of memory that should be used to\n"
+ " back the guest data region.\n\n");
+ backing_src_help();
puts("");
exit(0);
}
struct test_params p = {
.iterations = TEST_HOST_LOOP_N,
.wr_fract = 1,
+ .partition_vcpu_memory_access = true,
+ .backing_src = VM_MEM_SRC_ANONYMOUS,
};
int opt;
guest_modes_append_default();
- while ((opt = getopt(argc, argv, "hi:p:m:b:f:v:")) != -1) {
+ while ((opt = getopt(argc, argv, "hi:p:m:b:f:v:os:")) != -1) {
switch (opt) {
case 'i':
- p.iterations = strtol(optarg, NULL, 10);
+ p.iterations = atoi(optarg);
break;
case 'p':
p.phys_offset = strtoull(optarg, NULL, 0);
TEST_ASSERT(nr_vcpus > 0 && nr_vcpus <= max_vcpus,
"Invalid number of vcpus, must be between 1 and %d", max_vcpus);
break;
+ case 'o':
+ p.partition_vcpu_memory_access = false;
+ break;
+ case 's':
+ p.backing_src = parse_backing_src_type(optarg);
+ break;
case 'h':
default:
help(argv[0]);
projects / linux-2.6-microblaze.git / blobdiff