The filed tells user the sample is from which cpu.
Signed-off-by: Luming Yu <luming...@intel.com>
---
drivers/misc/hw_latency_test.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/hw_latency_test.c b/drivers/misc/hw_latency_test.c
index 4303644..256b1c0 100644
--- a/drivers/misc/hw_latency_test.c
+++ b/drivers/misc/hw_latency_test.c
@@ -124,11 +124,13 @@ static struct sample *buffer_get_sample(struct sample
*sample)
static int buffer_add_sample(u64 sample)
{
int ret = 0;
+ unsigned int cpu = smp_processor_id();
if (sample > data.threshold) {
struct sample s;
data.count++;
+ s.cpu = cpu;
s.seqnum = data.count;
s.duration = sample;
s.timestamp = CURRENT_TIME;
@@ -615,7 +617,8 @@ static ssize_t debug_sample_fread(struct file *filp, char
__user *ubuf,
goto out;
}
}
- len = snprintf(buf, sizeof(buf), "%010lu.%010lu\t%llu\n",
+ len = snprintf(buf, sizeof(buf), "[%d]%010lu.%010lu\t%llu\n",
+ sample->cpu,
sample->timestamp.tv_sec,
sample->timestamp.tv_nsec,
sample->duration);
--
1.7.12.1
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