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SICS-729: The idle CPU usage has been reduced from 20% to <2%.

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The select timeout has been set to 10ms and we only check if a socket is writeable when SICS has a message to send.
The performance command in SICS now shows a value of about 100 instead of 1000.
This commit is contained in:
Ferdi Franceschini
2014-04-29 13:52:26 +10:00
parent 19f6c8541c
commit 4bd3200c99
1 changed files with 6 additions and 2 deletions
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8
asynnet.c
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@ -395,14 +395,18 @@ void ANETprocess(void)
{ {
int i, status, count = 0, socke = 0, length; int i, status, count = 0, socke = 0, length;
fd_set readMask, writeMask; fd_set readMask, writeMask;
struct timeval tmo = { 0, 10 }; struct timeval tmo = { 0, 10000 };
FD_ZERO(&readMask); FD_ZERO(&readMask);
FD_ZERO(&writeMask); FD_ZERO(&writeMask);
for (i = 0; i < noConnections; i++) { for (i = 0; i < noConnections; i++) {
socke = connections[i].socket; socke = connections[i].socket;
FD_SET(socke, &readMask); FD_SET(socke, &readMask);
FD_SET(socke, &writeMask); if (connections[i].writeBuffer != NULL) {
GetRWBufferData(connections[i].writeBuffer, &length);
if (length > 0)
FD_SET(socke, &writeMask);
}
if (socke > count) { if (socke > count) {
count = socke; count = socke;
} }