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Fixed performance in Windows. 

Additionally, the VM can be throttled by parsing in the wrapper the <max_vm_cpu_pct> specific project preference.

svn path=/trunk/boinc/; revision=23976
This commit is contained in:
Daniel Lombraña González 2011-08-10 12:48:29 +00:00
parent 609d5665cc
commit 6d104573c6
1 changed files with 46 additions and 22 deletions
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68
samples/vboxwrapper/cernvm/cernvmwrapper.cpp
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@ -26,13 +26,12 @@
// Contributor: Daniel Lombraña González <teleyinex AT gmail DOT com>
#include <stdio.h>
#include <vector>
#include <string>
#include <sstream>
#include <iostream>
#include <fstream>
#include <time.h>
# include <stdlib.h>
#include <stdlib.h>
#include "zlib.h"
#ifdef _WIN32
@ -71,8 +70,8 @@
#define POLL_PERIOD 1.0
#define MESSAGE "CPUTIME"
#define YEAR_SECS 365*24*60*60
#define BUFSIZE 4096
using std::vector;
using std::string;
struct VM {
@ -100,7 +99,9 @@ struct VM {
int send_cputime_message();
void poll();
};
void write_cputime(double);
APP_INIT_DATA aid;
@ -193,18 +194,30 @@ bool vbm_popen(string arg_list,
}
return false;
}
while(1)
{
GetExitCodeProcess(pi.hProcess,&exit); //while the process is running
if (exit != STILL_ACTIVE)
break;
}
//while(1)
//{
// GetExitCodeProcess(pi.hProcess,&exit); //while the process is running
// if (exit != STILL_ACTIVE)
// break;
//}
// Wait until process exists.
WaitForSingleObject( pi.hProcess, INFINITE );
// Close process and thread handles.
CloseHandle(pi.hThread);
CloseHandle(pi.hProcess);
if(buffer!=NULL){
memset(buffer,0,nSize);
DWORD bread;
ReadFile(read_stdout,buffer,nSize-1,&bread,NULL);
BOOL bSuccess = false;
for (;;)
{
ReadFile(read_stdout,buffer,nSize-1,&bread,NULL);
if ( ! bSuccess || bread == 0 ) break;
}
// buffer[bread]=0;
CloseHandle(newstdout);
CloseHandle(read_stdout);
@ -360,19 +373,30 @@ void VM::throttle()
// Check the BOINC CPU preferences for running the VM accordingly
string arg_list = "";
boinc_get_init_data(aid);
fprintf(stderr,"INFO: Maximum usage of CPU: %f\n", aid.global_prefs.cpu_usage_limit);
fprintf(stderr,"INFO: Setting how much CPU time the virtual CPU can use: %i\n", int(aid.global_prefs.cpu_usage_limit));
std::stringstream out;
out << int(aid.global_prefs.cpu_usage_limit);
double max_vm_cpu_pct = 100.0;
if (aid.project_preferences)
{
if (!aid.project_preferences) return;
if (parse_double(aid.project_preferences, "<max_vm_cpu_pct>", max_vm_cpu_pct))
{
fprintf(stderr,"INFO: Maximum usage of CPU: %f\n", max_vm_cpu_pct);
fprintf(stderr,"INFO: Setting how much CPU time the virtual CPU can use: %i\n", int(max_vm_cpu_pct));
std::stringstream out;
out << int(max_vm_cpu_pct);
arg_list = " controlvm " + virtual_machine_name + " cpuexecutioncap " + out.str();
if (!vbm_popen(arg_list))
{
fprintf(stderr,"ERROR: Impossible to set up CPU percentage usage limit\n");
}
else
{
fprintf(stderr,"INFO: Success!\n");
arg_list = " controlvm " + virtual_machine_name + " cpuexecutioncap " + out.str();
if (!vbm_popen(arg_list))
{
fprintf(stderr,"ERROR: Impossible to set up CPU percentage usage limit\n");
}
else
{
fprintf(stderr,"INFO: Success!\n");
}
}
}
}