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Kirill Smelkov
ioping
Commits
e4f38e7c
Commit
e4f38e7c
authored
Aug 19, 2011
by
Konstantin Khlebnikov
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ioping: time period for statistics
Signed-off-by:
Konstantin Khlebnikov
<
koct9i@gmail.com
>
parent
9ea24462
Changes
2
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44 additions
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17 deletions
+44
-17
ioping.1
ioping.1
+5
-1
ioping.c
ioping.c
+39
-16
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ioping.1
View file @
e4f38e7c
...
@@ -7,6 +7,7 @@ ioping \- simple disk I/O latency monitoring tool
...
@@ -7,6 +7,7 @@ ioping \- simple disk I/O latency monitoring tool
.OP \-c count
.OP \-c count
.OP \-w deadline
.OP \-w deadline
.OP \-p period
.OP \-p period
.OP \-P period
.OP \-i interval
.OP \-i interval
.OP \-s size
.OP \-s size
.OP \-S wsize
.OP \-S wsize
...
@@ -31,6 +32,9 @@ Stop after \fIdeadline\fR time passed.
...
@@ -31,6 +32,9 @@ Stop after \fIdeadline\fR time passed.
.BI \-p \ period
.BI \-p \ period
Print raw statistics for every \fIperiod\fR requests.
Print raw statistics for every \fIperiod\fR requests.
.TP
.TP
.BI \-P \ period
Print raw statistics for every \fIperiod\fR in time.
.TP
.BI \-i \ interval
.BI \-i \ interval
Set time between requests to \fIinterval\fR (\fB1s\fR).
Set time between requests to \fIinterval\fR (\fB1s\fR).
.TP
.TP
...
@@ -68,7 +72,7 @@ Display help message and exit.
...
@@ -68,7 +72,7 @@ Display help message and exit.
.B \-v
.B \-v
Display version and exit.
Display version and exit.
.SS Argument suffixes
.SS Argument suffixes
For options that expect time argument (\fB\-i\fR and \fB\-w\fR),
For options that expect time argument (\fB\-i\fR
, \fB\-P\fR
and \fB\-w\fR),
default is seconds, unless you specify one of the following suffixes
default is seconds, unless you specify one of the following suffixes
(case-insensitive):
(case-insensitive):
.TP
.TP
...
...
ioping.c
View file @
e4f38e7c
...
@@ -77,13 +77,14 @@ int posix_memalign(void **memptr, size_t alignment, size_t size)
...
@@ -77,13 +77,14 @@ int posix_memalign(void **memptr, size_t alignment, size_t size)
void
usage
(
void
)
void
usage
(
void
)
{
{
fprintf
(
stderr
,
fprintf
(
stderr
,
" Usage: ioping [-LACDRq] [-c count] [-w deadline] [-p period] [-i interval]
\n
"
" Usage: ioping [-LACDRq] [-c count] [-w deadline] [-p
P
period] [-i interval]
\n
"
" [-s size] [-S wsize] [-o offset] device|file|directory
\n
"
" [-s size] [-S wsize] [-o offset] device|file|directory
\n
"
" ioping -h | -v
\n
"
" ioping -h | -v
\n
"
"
\n
"
"
\n
"
" -c <count> stop after <count> requests
\n
"
" -c <count> stop after <count> requests
\n
"
" -w <deadline> stop after <deadline>
\n
"
" -w <deadline> stop after <deadline>
\n
"
" -p <period> print raw statistics for every <period> requests
\n
"
" -p <period> print raw statistics for every <period> requests
\n
"
" -P <period> print raw statistics for every <period> in time
\n
"
" -i <interval> interval between requests (1s)
\n
"
" -i <interval> interval between requests (1s)
\n
"
" -s <size> request size (4k)
\n
"
" -s <size> request size (4k)
\n
"
" -S <wsize> working set size (1m)
\n
"
" -S <wsize> working set size (1m)
\n
"
...
@@ -216,7 +217,6 @@ int fd;
...
@@ -216,7 +217,6 @@ int fd;
void
*
buf
;
void
*
buf
;
int
quiet
=
0
;
int
quiet
=
0
;
int
period
=
0
;
int
direct
=
0
;
int
direct
=
0
;
int
async
=
0
;
int
async
=
0
;
int
cached
=
0
;
int
cached
=
0
;
...
@@ -224,6 +224,9 @@ int randomize = 1;
...
@@ -224,6 +224,9 @@ int randomize = 1;
ssize_t
(
*
do_pread
)
(
int
fd
,
void
*
buf
,
size_t
nbytes
,
off_t
offset
)
=
pread
;
ssize_t
(
*
do_pread
)
(
int
fd
,
void
*
buf
,
size_t
nbytes
,
off_t
offset
)
=
pread
;
int
period_request
=
0
;
long
long
period_time
=
0
;
long
long
interval
=
1000000
;
long
long
interval
=
1000000
;
long
long
deadline
=
0
;
long
long
deadline
=
0
;
...
@@ -248,7 +251,7 @@ void parse_options(int argc, char **argv)
...
@@ -248,7 +251,7 @@ void parse_options(int argc, char **argv)
exit
(
1
);
exit
(
1
);
}
}
while
((
opt
=
getopt
(
argc
,
argv
,
"hvALRDCqi:w:s:S:c:o:p:"
))
!=
-
1
)
{
while
((
opt
=
getopt
(
argc
,
argv
,
"hvALRDCqi:w:s:S:c:o:p:
P:
"
))
!=
-
1
)
{
switch
(
opt
)
{
switch
(
opt
)
{
case
'h'
:
case
'h'
:
usage
();
usage
();
...
@@ -291,7 +294,10 @@ void parse_options(int argc, char **argv)
...
@@ -291,7 +294,10 @@ void parse_options(int argc, char **argv)
offset
=
parse_size
(
optarg
);
offset
=
parse_size
(
optarg
);
break
;
break
;
case
'p'
:
case
'p'
:
period
=
parse_int
(
optarg
);
period_request
=
parse_int
(
optarg
);
break
;
case
'P'
:
period_time
=
parse_time
(
optarg
);
break
;
break
;
case
'q'
:
case
'q'
:
quiet
=
1
;
quiet
=
1
;
...
@@ -505,10 +511,12 @@ int main (int argc, char **argv)
...
@@ -505,10 +511,12 @@ int main (int argc, char **argv)
struct
stat
st
;
struct
stat
st
;
int
ret
,
flags
;
int
ret
,
flags
;
int
part_request
;
long
long
this_time
,
time_total
;
long
long
this_time
,
time_total
;
long
long
part_min
,
part_max
,
time_min
,
time_max
;
long
long
part_min
,
part_max
,
time_min
,
time_max
;
double
time_sum
,
time_sum2
,
time_mdev
,
time_avg
;
double
time_sum
,
time_sum2
,
time_mdev
,
time_avg
;
double
part_sum
,
part_sum2
,
part_mdev
,
part_avg
;
double
part_sum
,
part_sum2
,
part_mdev
,
part_avg
;
long
long
time_now
,
time_next
,
period_deadline
;
parse_options
(
argc
,
argv
);
parse_options
(
argc
,
argv
);
...
@@ -629,14 +637,18 @@ int main (int argc, char **argv)
...
@@ -629,14 +637,18 @@ int main (int argc, char **argv)
request
=
0
;
request
=
0
;
woffset
=
0
;
woffset
=
0
;
part_request
=
0
;
part_min
=
time_min
=
LLONG_MAX
;
part_min
=
time_min
=
LLONG_MAX
;
part_max
=
time_max
=
LLONG_MIN
;
part_max
=
time_max
=
LLONG_MIN
;
part_sum
=
time_sum
=
0
;
part_sum
=
time_sum
=
0
;
part_sum2
=
time_sum2
=
0
;
part_sum2
=
time_sum2
=
0
;
time_total
=
now
();
time_now
=
now
();
time_total
=
time_now
;
period_deadline
=
time_now
+
period_time
;
while
(
!
exiting
)
{
while
(
!
exiting
)
{
request
++
;
part_
request
++
;
if
(
randomize
)
if
(
randomize
)
woffset
=
random
()
%
(
wsize
/
size
)
*
size
;
woffset
=
random
()
%
(
wsize
/
size
)
*
size
;
...
@@ -651,10 +663,14 @@ int main (int argc, char **argv)
...
@@ -651,10 +663,14 @@ int main (int argc, char **argv)
#endif
#endif
this_time
=
now
();
this_time
=
now
();
ret_size
=
do_pread
(
fd
,
buf
,
size
,
offset
+
woffset
);
ret_size
=
do_pread
(
fd
,
buf
,
size
,
offset
+
woffset
);
if
(
ret_size
<
0
&&
errno
!=
EINTR
)
if
(
ret_size
<
0
&&
errno
!=
EINTR
)
err
(
3
,
"read failed"
);
err
(
3
,
"read failed"
);
this_time
=
now
()
-
this_time
;
time_now
=
now
();
this_time
=
time_now
-
this_time
;
time_next
=
time_now
+
interval
;
part_sum
+=
this_time
;
part_sum
+=
this_time
;
part_sum2
+=
this_time
*
this_time
;
part_sum2
+=
this_time
*
this_time
;
...
@@ -666,21 +682,23 @@ int main (int argc, char **argv)
...
@@ -666,21 +682,23 @@ int main (int argc, char **argv)
if
(
!
quiet
)
if
(
!
quiet
)
printf
(
"%lld bytes from %s (%s %s): request=%d time=%.1f ms
\n
"
,
printf
(
"%lld bytes from %s (%s %s): request=%d time=%.1f ms
\n
"
,
(
long
long
)
ret_size
,
path
,
fstype
,
device
,
(
long
long
)
ret_size
,
path
,
fstype
,
device
,
request
,
this_time
/
1000
.);
request
+
part_request
,
this_time
/
1000
.);
if
(
period
&&
request
%
period
==
0
)
{
if
((
period_request
&&
(
part_request
>=
period_request
))
||
part_avg
=
part_sum
/
period
;
(
period_time
&&
(
time_next
>=
period_deadline
)))
{
part_mdev
=
sqrt
(
part_sum2
/
period
-
part_avg
*
part_avg
);
part_avg
=
part_sum
/
part_request
;
part_mdev
=
sqrt
(
part_sum2
/
part_request
-
part_avg
*
part_avg
);
printf
(
"%d %.0f %.0f %.0f %lld %.0f %lld %.0f
\n
"
,
printf
(
"%d %.0f %.0f %.0f %lld %.0f %lld %.0f
\n
"
,
p
eriod
,
part_sum
,
p
art_request
,
part_sum
,
1000000
.
*
p
eriod
/
part_sum
,
1000000
.
*
p
art_request
/
part_sum
,
1000000
.
*
p
eriod
*
size
/
part_sum
,
1000000
.
*
p
art_request
*
size
/
part_sum
,
part_min
,
part_avg
,
part_min
,
part_avg
,
part_max
,
part_mdev
);
part_max
,
part_mdev
);
time_sum
+=
part_sum
;
time_sum
+=
part_sum
;
time_sum2
+=
part_sum2
;
time_sum2
+=
part_sum2
;
request
+=
part_request
;
if
(
part_min
<
time_min
)
if
(
part_min
<
time_min
)
time_min
=
part_min
;
time_min
=
part_min
;
if
(
part_max
>
time_max
)
if
(
part_max
>
time_max
)
...
@@ -688,6 +706,10 @@ int main (int argc, char **argv)
...
@@ -688,6 +706,10 @@ int main (int argc, char **argv)
part_min
=
LLONG_MAX
;
part_min
=
LLONG_MAX
;
part_max
=
LLONG_MIN
;
part_max
=
LLONG_MIN
;
part_sum
=
part_sum2
=
0
;
part_sum
=
part_sum2
=
0
;
part_request
=
0
;
while
(
period_time
&&
time_next
>=
period_deadline
)
period_deadline
+=
period_time
;
}
}
if
(
!
randomize
)
{
if
(
!
randomize
)
{
...
@@ -702,7 +724,7 @@ int main (int argc, char **argv)
...
@@ -702,7 +724,7 @@ int main (int argc, char **argv)
if
(
count
&&
request
>=
count
)
if
(
count
&&
request
>=
count
)
break
;
break
;
if
(
deadline
&&
now
()
+
interval
>=
deadline
)
if
(
deadline
&&
time_next
>=
deadline
)
break
;
break
;
if
(
interval
)
if
(
interval
)
...
@@ -713,6 +735,7 @@ int main (int argc, char **argv)
...
@@ -713,6 +735,7 @@ int main (int argc, char **argv)
time_sum
+=
part_sum
;
time_sum
+=
part_sum
;
time_sum2
+=
part_sum2
;
time_sum2
+=
part_sum2
;
request
+=
part_request
;
if
(
part_min
<
time_min
)
if
(
part_min
<
time_min
)
time_min
=
part_min
;
time_min
=
part_min
;
if
(
part_max
>
time_max
)
if
(
part_max
>
time_max
)
...
@@ -721,7 +744,7 @@ int main (int argc, char **argv)
...
@@ -721,7 +744,7 @@ int main (int argc, char **argv)
time_avg
=
time_sum
/
request
;
time_avg
=
time_sum
/
request
;
time_mdev
=
sqrt
(
time_sum2
/
request
-
time_avg
*
time_avg
);
time_mdev
=
sqrt
(
time_sum2
/
request
-
time_avg
*
time_avg
);
if
(
!
quiet
||
!
period
)
{
if
(
!
quiet
||
(
!
period_time
&&
!
period_request
)
)
{
printf
(
"
\n
--- %s (%s %s) ioping statistics ---
\n
"
,
printf
(
"
\n
--- %s (%s %s) ioping statistics ---
\n
"
,
path
,
fstype
,
device
);
path
,
fstype
,
device
);
printf
(
"%d requests completed in %.1f ms, "
printf
(
"%d requests completed in %.1f ms, "
...
...
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