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A few comments about main thread serving I/O as well.

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Related to #6110.
This commit is contained in:
antirez 2020-01-13 12:50:26 +01:00
parent 24896427fc
commit a8c912ead6
1 changed files with 7 additions and 1 deletions
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8
src/networking.c
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@ -2656,6 +2656,10 @@ pthread_mutex_t io_threads_mutex[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_op; /* IO_THREADS_OP_WRITE or IO_THREADS_OP_READ. */
/* This is the list of clients each thread will serve when threaded I/O is
* used. We spawn N threads, and the N+1 list is used for the clients that
* are processed by the main thread itself (this is why ther is "+1"). */
list *io_threads_list[IO_THREADS_MAX_NUM+1];
void *IOThreadMain(void *myid) {
@ -2729,7 +2733,7 @@ void initThreadedIO(void) {
}
io_threads[i] = tid;
}
io_threads_list[server.io_threads_num] = listCreate();
io_threads_list[server.io_threads_num] = listCreate(); /* For main thread */
}
void startThreadedIO(void) {
@ -2814,6 +2818,7 @@ int handleClientsWithPendingWritesUsingThreads(void) {
io_threads_pending[j] = count;
}
/* Also use the main thread to process a slide of clients. */
listRewind(io_threads_list[server.io_threads_num],&li);
while((ln = listNext(&li))) {
client *c = listNodeValue(ln);
@ -2898,6 +2903,7 @@ int handleClientsWithPendingReadsUsingThreads(void) {
io_threads_pending[j] = count;
}
/* Also use the main thread to process a slide of clients. */
listRewind(io_threads_list[server.io_threads_num],&li);
while((ln = listNext(&li))) {
client *c = listNodeValue(ln);