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ruanhaishen
redis
Commits
b1f2c510
Commit
b1f2c510
authored
May 21, 2019
by
zhaozhao.zz
Committed by
antirez
Jan 17, 2020
Browse files
Threaded IO: use main thread to handle write work
parent
7bbafc56
Changes
1
Show whitespace changes
Inline
Side-by-side
src/networking.c
View file @
b1f2c510
...
@@ -2656,7 +2656,7 @@ pthread_mutex_t io_threads_mutex[IO_THREADS_MAX_NUM];
...
@@ -2656,7 +2656,7 @@ pthread_mutex_t io_threads_mutex[IO_THREADS_MAX_NUM];
_Atomic
unsigned
long
io_threads_pending
[
IO_THREADS_MAX_NUM
];
_Atomic
unsigned
long
io_threads_pending
[
IO_THREADS_MAX_NUM
];
int
io_threads_active
;
/* Are the threads currently spinning waiting I/O? */
int
io_threads_active
;
/* Are the threads currently spinning waiting I/O? */
int
io_threads_op
;
/* IO_THREADS_OP_WRITE or IO_THREADS_OP_READ. */
int
io_threads_op
;
/* IO_THREADS_OP_WRITE or IO_THREADS_OP_READ. */
list
*
io_threads_list
[
IO_THREADS_MAX_NUM
];
list
*
io_threads_list
[
IO_THREADS_MAX_NUM
+
1
];
void
*
IOThreadMain
(
void
*
myid
)
{
void
*
IOThreadMain
(
void
*
myid
)
{
/* The ID is the thread number (from 0 to server.iothreads_num-1), and is
/* The ID is the thread number (from 0 to server.iothreads_num-1), and is
...
@@ -2729,6 +2729,7 @@ void initThreadedIO(void) {
...
@@ -2729,6 +2729,7 @@ void initThreadedIO(void) {
}
}
io_threads
[
i
]
=
tid
;
io_threads
[
i
]
=
tid
;
}
}
io_threads_list
[
server
.
io_threads_num
]
=
listCreate
();
}
}
void
startThreadedIO
(
void
)
{
void
startThreadedIO
(
void
)
{
...
@@ -2800,7 +2801,7 @@ int handleClientsWithPendingWritesUsingThreads(void) {
...
@@ -2800,7 +2801,7 @@ int handleClientsWithPendingWritesUsingThreads(void) {
while
((
ln
=
listNext
(
&
li
)))
{
while
((
ln
=
listNext
(
&
li
)))
{
client
*
c
=
listNodeValue
(
ln
);
client
*
c
=
listNodeValue
(
ln
);
c
->
flags
&=
~
CLIENT_PENDING_WRITE
;
c
->
flags
&=
~
CLIENT_PENDING_WRITE
;
int
target_id
=
item_id
%
server
.
io_threads_num
;
int
target_id
=
item_id
%
(
server
.
io_threads_num
+
1
)
;
listAddNodeTail
(
io_threads_list
[
target_id
],
c
);
listAddNodeTail
(
io_threads_list
[
target_id
],
c
);
item_id
++
;
item_id
++
;
}
}
...
@@ -2813,6 +2814,13 @@ int handleClientsWithPendingWritesUsingThreads(void) {
...
@@ -2813,6 +2814,13 @@ int handleClientsWithPendingWritesUsingThreads(void) {
io_threads_pending
[
j
]
=
count
;
io_threads_pending
[
j
]
=
count
;
}
}
listRewind
(
io_threads_list
[
server
.
io_threads_num
],
&
li
);
while
((
ln
=
listNext
(
&
li
)))
{
client
*
c
=
listNodeValue
(
ln
);
writeToClient
(
c
->
fd
,
c
,
0
);
}
listEmpty
(
io_threads_list
[
server
.
io_threads_num
]);
/* Wait for all threads to end their work. */
/* Wait for all threads to end their work. */
while
(
1
)
{
while
(
1
)
{
unsigned
long
pending
=
0
;
unsigned
long
pending
=
0
;
...
...
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