From: Jingyi Wang <wangjingyi11@huawei.com>
To: <drjones@redhat.com>, <kvm@vger.kernel.org>,
<kvmarm@lists.cs.columbia.edu>
Cc: maz@kernel.org
Subject: [kvm-unit-tests PATCH v2 6/8] arm64: microbench: Allow each test to specify its running times
Date: Thu, 2 Jul 2020 11:01:30 +0800 [thread overview]
Message-ID: <20200702030132.20252-7-wangjingyi11@huawei.com> (raw)
In-Reply-To: <20200702030132.20252-1-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>
---
arm/micro-bench.c | 25 ++++++++++++++-----------
1 file changed, 14 insertions(+), 11 deletions(-)
diff --git a/arm/micro-bench.c b/arm/micro-bench.c
index aeb60a7..506d2f9 100644
--- a/arm/micro-bench.c
+++ b/arm/micro-bench.c
@@ -223,17 +223,18 @@ 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, NTIMES, true},
+ {"mmio_read_user", NULL, mmio_read_user_exec, NTIMES, true},
+ {"mmio_read_vgic", NULL, mmio_read_vgic_exec, NTIMES, true},
+ {"eoi", NULL, eoi_exec, NTIMES, true},
+ {"ipi", ipi_prep, ipi_exec, NTIMES, true},
+ {"ipi_hw", ipi_hw_prep, ipi_exec, NTIMES, true},
+ {"lpi", lpi_prep, lpi_exec, NTIMES, true},
};
struct ns_time {
@@ -254,7 +255,7 @@ 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) {
@@ -265,15 +266,17 @@ 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:[~2020-07-02 3:02 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-02 3:01 [kvm-unit-tests PATCH v2 0/8] arm/arm64: Add IPI/LPI/vtimer latency test Jingyi Wang
2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 1/8] arm64: microbench: get correct ipi received num Jingyi Wang
2020-07-02 12:36 ` Auger Eric
2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 2/8] arm64: microbench: Use the funcions for ipi test as the general functions for gic(ipi/lpi/timer) test Jingyi Wang
2020-07-02 5:25 ` Andrew Jones
2020-07-02 8:21 ` Jingyi Wang
2020-07-02 12:36 ` Auger Eric
2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 3/8] arm64: microbench: gic: Add gicv4.1 support for ipi latency test Jingyi Wang
2020-07-02 8:22 ` Marc Zyngier
2020-07-02 9:02 ` Jingyi Wang
2020-07-02 9:17 ` Marc Zyngier
2020-07-02 9:29 ` Jingyi Wang
2020-07-02 12:36 ` Auger Eric
2020-07-02 13:03 ` Marc Zyngier
2020-07-02 12:57 ` Auger Eric
2020-07-02 13:08 ` Marc Zyngier
2020-07-02 13:42 ` Auger Eric
2020-07-03 3:39 ` Jingyi Wang
2020-07-02 21:33 ` Andrew Jones
2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 4/8] arm64: its: Handle its command queue wrapping Jingyi Wang
2020-07-02 13:01 ` Auger Eric
2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 5/8] arm64: microbench: its: Add LPI latency test Jingyi Wang
2020-07-02 13:13 ` Auger Eric
2020-07-02 3:01 ` Jingyi Wang [this message]
2020-07-02 5:29 ` [kvm-unit-tests PATCH v2 6/8] arm64: microbench: Allow each test to specify its running times Andrew Jones
2020-07-02 8:46 ` Jingyi Wang
2020-07-02 13:17 ` Auger Eric
2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 7/8] arm64: microbench: Add time limit for each individual test Jingyi Wang
2020-07-02 5:48 ` Andrew Jones
2020-07-02 8:47 ` Jingyi Wang
2020-07-02 13:23 ` Auger Eric
2020-07-03 3:42 ` Jingyi Wang
2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 8/8] arm64: microbench: Add vtimer latency test Jingyi Wang
2020-07-02 5:44 ` Andrew Jones
2020-07-02 8:56 ` Jingyi Wang
2020-07-02 13:36 ` Auger Eric
2020-07-03 7:41 ` Jingyi Wang
2020-07-03 7:45 ` Auger Eric
2020-07-06 12:23 ` Jingyi Wang
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