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Posted to commits@nuttx.apache.org by xi...@apache.org on 2022/10/14 19:15:36 UTC
[incubator-nuttx-apps] branch master updated: system/cachespeed:Average time to add
This is an automated email from the ASF dual-hosted git repository.
xiaoxiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx-apps.git
The following commit(s) were added to refs/heads/master by this push:
new 2ad6dc37d system/cachespeed:Average time to add
2ad6dc37d is described below
commit 2ad6dc37d8f27b9ed130d343d0323295cd23cef2
Author: crafcat7 <11...@users.noreply.github.com>
AuthorDate: Sat Oct 15 00:01:27 2022 +0800
system/cachespeed:Average time to add
---
system/cachespeed/cachespeed_main.c | 37 ++++++++++++++++++++-----------------
1 file changed, 20 insertions(+), 17 deletions(-)
diff --git a/system/cachespeed/cachespeed_main.c b/system/cachespeed/cachespeed_main.c
index 67cb585a8..838c0d510 100644
--- a/system/cachespeed/cachespeed_main.c
+++ b/system/cachespeed/cachespeed_main.c
@@ -162,29 +162,30 @@ static uint32_t get_time_elaps(uint32_t prev_time)
****************************************************************************/
static void print_result(FAR const char *name, size_t bytes,
- uint32_t cost_time)
+ uint32_t cost_time, uint32_t repeat_cnt)
{
uint32_t rate;
struct timespec ts;
- /* Converted to ms */
+ /* Converted to ns */
up_perf_convert(cost_time, &ts);
- cost_time = ts.tv_sec * 1000 + ts.tv_nsec / 1000000;
+ cost_time = ts.tv_sec * 1000000000 + ts.tv_nsec;
- if (cost_time == 0)
+ if (cost_time / 1000000 == 0)
{
printf(CACHESPEED_PREFIX
- "Time-consuming is too short\n");
- exit(EXIT_FAILURE);
+ "The total overhead time in millisecond precision"
+ "is too short.\n");
}
- /* rate = (bytes / 1024) / (cost_time / 1000) */
+ /* rate = (bytes / 1024) / (cost_time / 1000000000) */
- rate = (uint64_t)bytes * 1000 / cost_time / 1024;
+ rate = (uint64_t)bytes * 1000000000 / cost_time / 1024;
printf(CACHESPEED_PREFIX
- "%s cost = %" PRIu32 " ms\t[Rate: %" PRIu32 "KB/s]\n",
- name, cost_time, rate);
+ "%s avg = %"PRIu32 " ns\t Rate: %" PRIu32 "KB/s\t"
+ "[cost = %" PRIu32 " ms]\n",
+ name, cost_time / repeat_cnt, rate, cost_time / 1000000);
}
/****************************************************************************
@@ -229,8 +230,8 @@ static void dcache_speed_test(FAR void *begin, size_t memset_size,
}
leave_critical_section(flags);
- print_result("clean dcache():\t", total_size, clean_cost_time);
- print_result("flush dcache():\t", total_size, flush_cost_time);
+ print_result("clean dcache():\t", total_size, clean_cost_time, repeat_cnt);
+ print_result("flush dcache():\t", total_size, flush_cost_time, repeat_cnt);
for (pt = 32; pt <= opt_size; pt <<= 1)
{
@@ -273,9 +274,11 @@ static void dcache_speed_test(FAR void *begin, size_t memset_size,
leave_critical_section(flags);
print_result("invalidate dcache():\t",
- total_size, invalidate_cost_time);
- print_result("clean dcache():\t", total_size, clean_cost_time);
- print_result("flush dcache():\t", total_size, flush_cost_time);
+ total_size, invalidate_cost_time, repeat_cnt);
+ print_result("clean dcache():\t", total_size, clean_cost_time,
+ repeat_cnt);
+ print_result("flush dcache():\t", total_size, flush_cost_time,
+ repeat_cnt);
}
}
@@ -308,7 +311,7 @@ static void icache_speed_test(FAR void *begin, size_t memset_size,
leave_critical_section(flags);
print_result("invalidate dcache():\t",
- memset_size * repeat_cnt, invalidate_cost_time);
+ memset_size * repeat_cnt, invalidate_cost_time, repeat_cnt);
for (pt = 32; pt <= memset_size; pt <<= 1)
{
@@ -336,7 +339,7 @@ static void icache_speed_test(FAR void *begin, size_t memset_size,
leave_critical_section(flags);
print_result("invalidate icache():\t",
- total_size, invalidate_cost_time);
+ total_size, invalidate_cost_time, repeat_cnt);
}
}