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Control dynamic HZ via server configuration.

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This commit is contained in:
antirez
2018-07-30 13:37:30 +02:00
parent 4e9c30a6ca
commit c426d85c4c
2 changed files with 13 additions and 6 deletions
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17
src/server.c
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@ -1096,14 +1096,18 @@ int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) {
/* Update the time cache. */
updateCachedTime();
server.hz = server.config_hz;
/* Adapt the server.hz value to the number of configured clients. If we have
* many clients, we want to call serverCron() with an higher frequency. */
server.hz = server.config_hz;
while (listLength(server.clients) / server.hz > MAX_CLIENTS_PER_CLOCK_TICK) {
server.hz *= 2;
if (server.hz > CONFIG_MAX_HZ) {
server.hz = CONFIG_MAX_HZ;
break;
if (server.dynamic_hz) {
while (listLength(server.clients) / server.hz >
MAX_CLIENTS_PER_CLOCK_TICK)
{
server.hz *= 2;
if (server.hz > CONFIG_MAX_HZ) {
server.hz = CONFIG_MAX_HZ;
break;
}
}
}
@ -1524,6 +1528,7 @@ void initServerConfig(void) {
server.configfile = NULL;
server.executable = NULL;
server.config_hz = CONFIG_DEFAULT_HZ;
server.dynamic_hz = CONFIG_DEFAULT_DYNAMIC_HZ;
server.arch_bits = (sizeof(long) == 8) ? 64 : 32;
server.port = CONFIG_DEFAULT_SERVER_PORT;
server.tcp_backlog = CONFIG_DEFAULT_TCP_BACKLOG;