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Remove CPU speed detection since

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- it is unreliable
- it adds a constant 0.1s to startup time
- it is hardly a feature for a movie player


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13629 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
diego 2004-10-13 09:37:32 +00:00
parent f968c50f1a
commit 4cba6fba71
1 changed files with 4 additions and 42 deletions
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46
cpudetect.c
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@ -13,7 +13,6 @@ CpuCaps gCpuCaps;
#include <stdio.h>
#include <string.h>
#include "osdep/timer.h"
#if defined (__NetBSD__) || defined(__OpenBSD__)
#include <sys/param.h>
@ -210,29 +209,6 @@ void GetCpuCaps( CpuCaps *caps)
}
static inline unsigned long long int rdtsc( void )
{
unsigned long long int retval;
__asm __volatile ("rdtsc":"=A"(retval)::"memory");
return retval;
}
/* Returns CPU clock in khz */
static unsigned int GetCpuSpeed(void)
{
unsigned long long int tscstart, tscstop;
unsigned int start, stop;
tscstart = rdtsc();
start = GetTimer();
usec_sleep(50000);
stop = GetTimer();
tscstop = rdtsc();
return((tscstop-tscstart)/((stop-start)/1000.0));
}
#define CPUID_EXTFAMILY ((regs2[0] >> 20)&0xFF) /* 27..20 */
#define CPUID_EXTMODEL ((regs2[0] >> 16)&0x0F) /* 19..16 */
#define CPUID_TYPE ((regs2[0] >> 12)&0x04) /* 13..12 */
@ -242,37 +218,23 @@ static unsigned int GetCpuSpeed(void)
char *GetCpuFriendlyName(unsigned int regs[], unsigned int regs2[]){
#include "cputable.h" /* get cpuname and cpuvendors */
char vendor[17], cpuspeed[16];
char vendor[17];
char *retname;
int i=0;
int i;
if (NULL==(retname=(char*)malloc(256))) {
mp_msg(MSGT_CPUDETECT,MSGL_FATAL,"Error: GetCpuFriendlyName() not enough memory\n");
exit(1);
}
/* Measure CPU speed */
if (gCpuCaps.hasTSC && (i = GetCpuSpeed()) > 0) {
if (i < 1000000) {
i += 50; /* for rounding */
snprintf(cpuspeed,15, " %d.%d MHz", i/1000, (i/100)%10);
} else {
//i += 500; /* for rounding */
snprintf(cpuspeed,15, " %d MHz", i/1000);
}
} else { /* No TSC Support */
cpuspeed[0]='\0';
}
sprintf(vendor,"%.4s%.4s%.4s",(char*)(regs+1),(char*)(regs+3),(char*)(regs+2));
for(i=0; i<MAX_VENDORS; i++){
if(!strcmp(cpuvendors[i].string,vendor)){
if(cpuname[i][CPUID_FAMILY][CPUID_MODEL]){
snprintf(retname,255,"%s %s%s",cpuvendors[i].name,cpuname[i][CPUID_FAMILY][CPUID_MODEL],cpuspeed);
snprintf(retname,255,"%s %s",cpuvendors[i].name,cpuname[i][CPUID_FAMILY][CPUID_MODEL]);
} else {
snprintf(retname,255,"unknown %s %d. Generation CPU%s",cpuvendors[i].name,CPUID_FAMILY,cpuspeed);
snprintf(retname,255,"unknown %s %d. Generation CPU",cpuvendors[i].name,CPUID_FAMILY);
mp_msg(MSGT_CPUDETECT,MSGL_WARN,"unknown %s CPU:\n",cpuvendors[i].name);
mp_msg(MSGT_CPUDETECT,MSGL_WARN,"Vendor: %s\n",cpuvendors[i].string);
mp_msg(MSGT_CPUDETECT,MSGL_WARN,"Type: %d\n",CPUID_TYPE);