From: Jingyi Wang <wangjingyi11@huawei.com>
To: <drjones@redhat.com>, <kvm@vger.kernel.org>,
<kvmarm@lists.cs.columbia.edu>
Cc: maz@kernel.org, prime.zeng@hisilicon.com
Subject: [kvm-unit-tests PATCH v3 06/10] arm64: microbench: Allow each test to specify its running times
Date: Fri, 31 Jul 2020 15:42:40 +0800 [thread overview]
Message-ID: <20200731074244.20432-7-wangjingyi11@huawei.com> (raw)
In-Reply-To: <20200731074244.20432-1-wangjingyi11@huawei.com>
For some test in micro-bench can be time consuming, we add a
micro-bench test parameter to allow each individual test to specify
its running times.
Signed-off-by: Jingyi Wang <wangjingyi11@huawei.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
---
arm/micro-bench.c | 27 ++++++++++++++-------------
1 file changed, 14 insertions(+), 13 deletions(-)
diff --git a/arm/micro-bench.c b/arm/micro-bench.c
index 82f3c07..93bd855 100644
--- a/arm/micro-bench.c
+++ b/arm/micro-bench.c
@@ -22,8 +22,6 @@
#include <asm/gic.h>
#include <asm/gic-v3-its.h>
-#define NTIMES (1U << 16)
-
static u32 cntfrq;
static volatile bool irq_ready, irq_received;
@@ -234,17 +232,18 @@ struct exit_test {
const char *name;
bool (*prep)(void);
void (*exec)(void);
+ u32 times;
bool run;
};
static struct exit_test tests[] = {
- {"hvc", NULL, hvc_exec, true},
- {"mmio_read_user", NULL, mmio_read_user_exec, true},
- {"mmio_read_vgic", NULL, mmio_read_vgic_exec, true},
- {"eoi", NULL, eoi_exec, true},
- {"ipi", ipi_prep, ipi_exec, true},
- {"ipi_hw", ipi_hw_prep, ipi_exec, true},
- {"lpi", lpi_prep, lpi_exec, true},
+ {"hvc", NULL, hvc_exec, 65536, true},
+ {"mmio_read_user", NULL, mmio_read_user_exec, 65536, true},
+ {"mmio_read_vgic", NULL, mmio_read_vgic_exec, 65536, true},
+ {"eoi", NULL, eoi_exec, 65536, true},
+ {"ipi", ipi_prep, ipi_exec, 65536, true},
+ {"ipi_hw", ipi_hw_prep, ipi_exec, 65536, true},
+ {"lpi", lpi_prep, lpi_exec, 65536, true},
};
struct ns_time {
@@ -265,7 +264,7 @@ static void ticks_to_ns_time(uint64_t ticks, struct ns_time *ns_time)
static void loop_test(struct exit_test *test)
{
- uint64_t start, end, total_ticks, ntimes = NTIMES;
+ uint64_t start, end, total_ticks, ntimes = 0;
struct ns_time total_ns, avg_ns;
if (test->prep) {
@@ -276,15 +275,17 @@ static void loop_test(struct exit_test *test)
}
isb();
start = read_sysreg(cntpct_el0);
- while (ntimes--)
+ while (ntimes < test->times) {
test->exec();
+ ntimes++;
+ }
isb();
end = read_sysreg(cntpct_el0);
total_ticks = end - start;
ticks_to_ns_time(total_ticks, &total_ns);
- avg_ns.ns = total_ns.ns / NTIMES;
- avg_ns.ns_frac = total_ns.ns_frac / NTIMES;
+ avg_ns.ns = total_ns.ns / ntimes;
+ avg_ns.ns_frac = total_ns.ns_frac / ntimes;
printf("%-30s%15" PRId64 ".%-15" PRId64 "%15" PRId64 ".%-15" PRId64 "\n",
test->name, total_ns.ns, total_ns.ns_frac, avg_ns.ns, avg_ns.ns_frac);
--
2.19.1
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next prev parent reply other threads:[~2020-07-31 7:43 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-31 7:42 [kvm-unit-tests PATCH v3 00/10] arm/arm64: Add IPI/LPI/vtimer latency test Jingyi Wang
2020-07-31 7:42 ` [kvm-unit-tests PATCH v3 01/10] arm64: microbench: get correct ipi received num Jingyi Wang
2020-07-31 7:42 ` [kvm-unit-tests PATCH v3 02/10] arm64: microbench: Generalize ipi test names Jingyi Wang
2020-07-31 7:42 ` [kvm-unit-tests PATCH v3 03/10] arm64: microbench: gic: Add ipi latency test for gicv4.1 support kvm Jingyi Wang
2020-07-31 7:42 ` [kvm-unit-tests PATCH v3 04/10] arm64: its: Handle its command queue wrapping Jingyi Wang
2020-07-31 7:42 ` [kvm-unit-tests PATCH v3 05/10] arm64: microbench: its: Add LPI latency test Jingyi Wang
2020-07-31 7:42 ` Jingyi Wang [this message]
2020-07-31 7:42 ` [kvm-unit-tests PATCH v3 07/10] arm64: microbench: Add time limit for each individual test Jingyi Wang
2020-08-01 16:13 ` Andrew Jones
2020-07-31 7:42 ` [kvm-unit-tests PATCH v3 08/10] arm64: microbench: Add vtimer latency test Jingyi Wang
2020-08-01 16:22 ` Andrew Jones
2020-07-31 7:42 ` [kvm-unit-tests PATCH v3 09/10] arm64: microbench: Add test->post() to further process test results Jingyi Wang
2020-08-01 17:03 ` Andrew Jones
2020-07-31 7:42 ` [kvm-unit-tests PATCH v3 10/10] arm64: microbench: Add timer_post() to get actual PPI latency Jingyi Wang
2020-07-31 12:01 ` [kvm-unit-tests PATCH v3 00/10] arm/arm64: Add IPI/LPI/vtimer latency test Andrew Jones
2020-08-03 2:15 ` Jingyi Wang
2020-08-01 17:40 ` Andrew Jones
2020-08-05 11:54 ` Jingyi Wang
2020-08-05 12:13 ` Marc Zyngier
2020-08-11 1:48 ` Jingyi Wang
2020-08-11 7:49 ` Marc Zyngier
2020-08-17 1:46 ` Jingyi Wang
2020-08-17 8:26 ` Marc Zyngier
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