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Kirill Smelkov
ioping
Commits
22adbbe3
Commit
22adbbe3
authored
Oct 29, 2016
by
Konstantin Khlebnikov
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ioping: ignore first and classify other requests
Signed-off-by:
Konstantin Khlebnikov
<
koct9i@gmail.com
>
parent
b4617fe5
Changes
2
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2 changed files
with
42 additions
and
9 deletions
+42
-9
ioping.1
ioping.1
+7
-2
ioping.c
ioping.c
+35
-7
No files found.
ioping.1
View file @
22adbbe3
...
...
@@ -8,6 +8,7 @@ ioping \- simple disk I/O latency monitoring tool
.OP \-i interval
.OP \-l speed
.OP \-t time
.OP \-T time
.OP \-s size
.OP \-S wsize
.OP \-o offset
...
...
@@ -36,8 +37,12 @@ Set time between requests to \fIinterval\fR (\fB1s\fR).
Set \fIspeed\fR limit in bytes per second. Set interval to request-size / speed.
.TP
.BI \-t \ time
Minimal valid request time for cache misses (\fB0us\fR).
Cache hits are ignored in statistics.
Minimal valid request time (\fB0us\fR).
Too fast requests are ignored in statistics.
.TP
.BI \-T \ time
Maximum valid request time.
Too slow requests are ignored in statistics.
.TP
.BI \-s \ size
Request size (\fB4k\fR).
...
...
ioping.c
View file @
22adbbe3
...
...
@@ -308,6 +308,7 @@ void usage(void)
" -i <interval> interval between requests (1s)
\n
"
" -l <speed> speed limit in bytes per second
\n
"
" -t <time> minimal valid request time (0us)
\n
"
" -T <time> maximum valid request time
\n
"
" -s <size> request size (4k)
\n
"
" -S <wsize> working set size (1m)
\n
"
" -o <offset> working set offset (0)
\n
"
...
...
@@ -497,6 +498,7 @@ long long deadline = 0;
long
long
speed_limit
=
0
;
long
long
min_valid_time
=
0
;
long
long
max_valid_time
=
LLONG_MAX
;
ssize_t
default_size
=
1
<<
12
;
ssize_t
size
=
0
;
...
...
@@ -521,7 +523,7 @@ void parse_options(int argc, char **argv)
exit
(
1
);
}
while
((
opt
=
getopt
(
argc
,
argv
,
"hvkALRDCWGYBqyi:t:w:s:S:c:o:p:P:l:"
))
!=
-
1
)
{
while
((
opt
=
getopt
(
argc
,
argv
,
"hvkALRDCWGYBqyi:t:
T:
w:s:S:c:o:p:P:l:"
))
!=
-
1
)
{
switch
(
opt
)
{
case
'h'
:
usage
();
...
...
@@ -573,6 +575,9 @@ void parse_options(int argc, char **argv)
case
't'
:
min_valid_time
=
parse_time
(
optarg
);
break
;
case
'T'
:
max_valid_time
=
parse_time
(
optarg
);
break
;
case
'w'
:
deadline
=
parse_time
(
optarg
);
custom_deadline
=
1
;
...
...
@@ -1064,6 +1069,7 @@ int main (int argc, char **argv)
int
ret
;
long
long
request
,
part_request
;
long
long
too_fast
=
0
,
too_slow
=
0
;
long
long
total_valid
,
part_valid
;
long
long
time_start
,
time_total
,
this_time
;
double
part_min
,
part_max
,
time_min
,
time_max
;
...
...
@@ -1299,7 +1305,13 @@ skip_preparation:
this_time
=
time_now
-
this_time
;
if
(
this_time
>=
min_valid_time
)
{
if
(
request
==
1
)
{
/* warmup */
}
else
if
(
this_time
<
min_valid_time
)
{
too_fast
++
;
}
else
if
(
this_time
>
max_valid_time
)
{
too_slow
++
;
}
else
{
part_valid
++
;
part_sum
+=
this_time
;
part_sum2
+=
this_time
*
this_time
;
...
...
@@ -1317,8 +1329,20 @@ skip_preparation:
print_size
(
device_size
);
printf
(
"): request=%lu time="
,
(
long
unsigned
)
request
);
print_time
(
this_time
);
if
(
this_time
<
min_valid_time
)
printf
(
" (cache hit)"
);
if
(
request
==
1
)
{
printf
(
" (warmup)"
);
}
else
if
(
this_time
<
min_valid_time
)
{
printf
(
" (too fast)"
);
}
else
if
(
this_time
>
max_valid_time
)
{
printf
(
" (too slow)"
);
}
else
if
(
part_valid
>
5
&&
part_min
<
part_max
)
{
int
percent
=
(
this_time
-
part_min
)
*
100
/
(
part_max
-
part_min
);
if
(
percent
<
5
)
printf
(
" (fast)"
);
else
if
(
percent
>
95
)
printf
(
" (slow)"
);
}
printf
(
"
\n
"
);
}
...
...
@@ -1434,9 +1458,13 @@ skip_preparation:
printf
(
" requests completed in "
);
print_time
(
time_sum
);
printf
(
", "
);
if
(
total_valid
<
request
)
{
print_int
(
request
-
total_valid
);
printf
(
" cache hits, "
);
if
(
too_fast
)
{
print_int
(
too_fast
);
printf
(
" too fast, "
);
}
if
(
too_slow
)
{
print_int
(
too_slow
);
printf
(
" too slow, "
);
}
print_size
((
long
long
)
total_valid
*
size
);
printf
(
" %s, "
,
write_read_test
?
"transferred"
:
...
...
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