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ruanhaishen
redis
Commits
41c9d1c0
Commit
41c9d1c0
authored
Jul 01, 2014
by
antirez
Browse files
LATENCY SAMPLES implemented.
parent
44cf7395
Changes
3
Hide whitespace changes
Inline
Side-by-side
src/latency.c
View file @
41c9d1c0
...
...
@@ -89,5 +89,49 @@ void latencyAddSample(char *event, mstime_t latency) {
/* ---------------------- Latency command implementation -------------------- */
/* latencyCommand() helper to produce a time-delay reply for all the samples
* in memory for the specified time series. */
void
latencyCommandReplyWithSamples
(
redisClient
*
c
,
struct
latencyTimeSeries
*
ts
)
{
void
*
replylen
=
addDeferredMultiBulkLength
(
c
);
int
samples
=
0
,
j
;
for
(
j
=
0
;
j
<
LATENCY_TS_LEN
;
j
++
)
{
int
i
=
(
ts
->
idx
+
j
)
%
LATENCY_TS_LEN
;
if
(
ts
->
samples
[
i
].
time
==
0
)
continue
;
addReplyMultiBulkLen
(
c
,
2
);
addReplyLongLong
(
c
,
ts
->
samples
[
i
].
time
);
addReplyLongLong
(
c
,
ts
->
samples
[
i
].
latency
);
samples
++
;
}
setDeferredMultiBulkLength
(
c
,
replylen
,
samples
);
}
/* LATENCY command implementations.
*
* LATENCY SAMPLES: return time-latency samples for the specified event.
* LATENCY LATEST: return the latest latency for all the events classes.
* LATENCY DOCTOR: returns an human readable analysis of instance latency.
* LATENCY GRAPH: provide an ASCII graph of the latency of the specified event.
*/
void
latencyCommand
(
redisClient
*
c
)
{
struct
latencyTimeSeries
*
ts
;
if
(
!
strcasecmp
(
c
->
argv
[
1
]
->
ptr
,
"samples"
)
&&
c
->
argc
==
3
)
{
/* LATENCY SAMPLES <event> */
ts
=
dictFetchValue
(
server
.
latency_events
,
c
->
argv
[
2
]
->
ptr
);
if
(
ts
==
NULL
)
goto
nodataerr
;
latencyCommandReplyWithSamples
(
c
,
ts
);
}
else
{
addReply
(
c
,
shared
.
syntaxerr
);
return
;
}
return
;
nodataerr:
/* Common error when the user asks for an event we have no latency
* information about. */
addReplyErrorFormat
(
c
,
"No samples available for event '%s'"
,
c
->
argv
[
2
]
->
ptr
);
}
src/redis.c
View file @
41c9d1c0
...
...
@@ -282,7 +282,8 @@ struct redisCommand redisCommandTable[] = {
{"pfadd",pfaddCommand,-2,"wmF",0,NULL,1,1,1,0,0},
{"pfcount",pfcountCommand,-2,"w",0,NULL,1,1,1,0,0},
{"pfmerge",pfmergeCommand,-2,"wm",0,NULL,1,-1,1,0,0},
{"pfdebug",pfdebugCommand,-3,"w",0,NULL,0,0,0,0,0}
{"pfdebug",pfdebugCommand,-3,"w",0,NULL,0,0,0,0,0},
{"latency",latencyCommand,-2,"arslt",0,NULL,0,0,0,0,0}
};
struct evictionPoolEntry *evictionPoolAlloc(void);
...
...
src/redis.h
View file @
41c9d1c0
...
...
@@ -1487,6 +1487,7 @@ void pfaddCommand(redisClient *c);
void
pfcountCommand
(
redisClient
*
c
);
void
pfmergeCommand
(
redisClient
*
c
);
void
pfdebugCommand
(
redisClient
*
c
);
void
latencyCommand
(
redisClient
*
c
);
#if defined(__GNUC__)
void
*
calloc
(
size_t
count
,
size_t
size
)
__attribute__
((
deprecated
));
...
...
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