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Addition of new tuning parameters for epoll spins and wait time

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This commit is contained in:
Mark Riddoch
2014-10-17 12:28:27 +01:00
parent 2edab598b2
commit e729a17fd4
6 changed files with 162 additions and 17 deletions
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47
server/modules/routing/debugcmd.c
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@ -66,6 +66,7 @@
#include <adminusers.h>
#include <monitor.h>
#include <debugcli.h>
#include <poll.h>
#include <skygw_utils.h>
#include <log_manager.h>
@ -81,6 +82,7 @@
#define ARG_TYPE_DCB 7
#define ARG_TYPE_MONITOR 8
#define ARG_TYPE_FILTER 9
#define ARG_TYPE_NUMERIC 10
/**
* The subcommand structure
@ -286,6 +288,8 @@ struct subcommand restartoptions[] = {
};
static void set_server(DCB *dcb, SERVER *server, char *bit);
static void set_pollsleep(DCB *dcb, int);
static void set_nbpoll(DCB *dcb, int);
/**
* The subcommands of the set command
*/
@ -294,6 +298,15 @@ struct subcommand setoptions[] = {
"Set the status of a server. E.g. set server dbnode4 master",
"Set the status of a server. E.g. set server 0x4838320 master",
{ARG_TYPE_SERVER, ARG_TYPE_STRING, 0} },
{ "pollsleep", 1, set_pollsleep,
"Set the maximum poll sleep period in milliseconds",
"Set the maximum poll sleep period in milliseconds",
{ARG_TYPE_NUMERIC, 0, 0} },
{ "nbpolls", 1, set_nbpoll,
"Set the number of non-blocking polls",
"Set the number of non-blocking polls",
{ARG_TYPE_NUMERIC, 0, 0} },
{ NULL, 0, NULL, NULL, NULL,
{0, 0, 0} }
};
@ -577,6 +590,16 @@ SERVICE *service;
if (mode == CLIM_USER || (rval = (unsigned long)strtol(arg, NULL, 0)) == 0)
rval = (unsigned long)filter_find(arg);
return rval;
case ARG_TYPE_NUMERIC:
{
int i;
for (i = 0; arg[i]; i++)
{
if (arg[i] < '0' || arg[i] > '9')
return 0;
}
return atoi(arg);
}
}
return 0;
}
@ -1117,6 +1140,30 @@ static void disable_log_action(DCB *dcb, char *arg1) {
skygw_log_disable(type);
}
/**
* Set the duration of the sleep passed to the poll wait
*
* @param dcb DCB for output
* @param sleeptime Sleep time in milliseconds
*/
static void
set_pollsleep(DCB *dcb, int sleeptime)
{
poll_set_maxwait(sleeptime);
}
/**
* Set the number of non-blockign spins to make
*
* @param dcb DCB for output
* @param nb Number of spins
*/
static void
set_nbpoll(DCB *dcb, int nb)
{
poll_set_nonblocking_polls(nb);
}
#if defined(SS_DEBUG)
static void fail_backendfd(void)
{