diff options
| author |   Zhijiang Hu <hu.zhijiang@zte.com.cn> | 2017-05-04 00:55:33 -0400 |
|---|---|---|
| committer | Zhijiang Hu <hu.zhijiang@zte.com.cn> | 2017-05-04 01:14:50 -0400 |
| commit | 779440ef6064b2d1f2a5004bd92ae3660bc9b63a (patch) | |
| tree | b96a9f13a8d06b700eadb4f1a911699cf15e6588 /code/jasmine/server-tcp.c | |
| parent | 4c57d26e33d6cc4ec66968ab488442eb2e730b45 (diff) | |
Increase PACKETS_PER_BUFFER to 65536
1) This mainly increase PACKETS_PER_BUFFER to 65536 to reduce the
frequency of TCP client acks.
2) Also kills TCP_BUFF_SIZE and define each buffer size in a
more intuitive way.
3) Free more unused memory to prevent being killed by oom-killer
after enlarged PACKETS_PER_BUFFER.
4) Increase client's select() timeout to 20 secs, since we encountered
timeout due to CPU busy in the same BM but with 20 VMs.
Tested this PS in a 10 VM node env, and it can multicast a 2.7G
file to 10 VMs in 6 minutes, while unicast needs 30+ minutes.
Change-Id: Iaf862fb1f1259cc770f720ccdd95dcc281aef262
Signed-off-by: Zhijiang Hu <hu.zhijiang@zte.com.cn>
Diffstat (limited to 'code/jasmine/server-tcp.c')
| -rwxr-xr-x | code/jasmine/server-tcp.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/code/jasmine/server-tcp.c b/code/jasmine/server-tcp.c index c48de77d..49fa4e5e 100755 --- a/code/jasmine/server-tcp.c +++ b/code/jasmine/server-tcp.c @@ -25,7 +25,6 @@ #include "server.h" #define MAX_CLIENTS 128 /* Clients per TCP server */ -#define TCP_BUFF_SIZE 65536 struct cdata { struct tcpq *tx; @@ -219,8 +218,9 @@ void accept_clients_may_spawn(struct server_status_data *sdata) void keep_on_receiving_client_request(struct server_status_data *sdata) { - char buf[TCP_BUFF_SIZE]; + char buf[MAX_REQ_SIZE]; void *cpy; + void *anscpy; struct request_ctl *req; uint32_t *rqb; struct packet_ctl *ans; @@ -270,10 +270,11 @@ void keep_on_receiving_client_request(struct server_status_data *sdata) total_sz = ans->data_size + sizeof(struct packet_ctl); log(6, "Send packet %u (%u bytes) on %d", rqb[rq_index], ans->data_size, sdata->cindex); - cpy = wrapper_malloc(total_sz); - memcpy(cpy, ans, total_sz); - tcpq_queue_tail(cd->tx, cpy, total_sz); + anscpy = wrapper_malloc(total_sz); + memcpy(anscpy, ans, total_sz); + tcpq_queue_tail(cd->tx, anscpy, total_sz); } + free(cpy); if (rq_index > 0) { /* Data need to be sent out */ @@ -394,7 +395,7 @@ void handle_pullin_event(struct server_status_data *sdata) void handle_pullout_event(struct server_status_data *sdata) { - char buf[TCP_BUFF_SIZE]; + char buf[PACKET_SIZE]; struct pollfd *ds; struct cdata *cd; long transmit_sz; |