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Overview
| Comment: | Fix to the previous check-in so that it works on a intel Mac. (CVS 4962) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
1d67f41c885d052ab10a33892938a85b |
| User & Date: | drh 2008-04-03 20:09:07 |
Context
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2008-04-03
| ||
| 21:42 | Make sure the zTail return from sqlite3_prepare() is initialized even if there is a malloc failure. (CVS 4963) (check-in: 040cffe2 user: drh tags: trunk) | |
| 20:09 | Fix to the previous check-in so that it works on a intel Mac. (CVS 4962) (check-in: 1d67f41c user: drh tags: trunk) | |
| 19:40 | Use an improved RDTSC access routine. (CVS 4961) (check-in: b4eba9c5 user: drh tags: trunk) | |
Changes
Changes to src/vdbe.c.
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** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.726 2008/04/03 19:40:59 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> #include "vdbeInt.h" /* ** The following global variable is incremented every time a cursor ................................................................................ ** The following routine only works on pentium-class processors. ** It uses the RDTSC opcode to read the cycle count value out of the ** processor and returns that value. This can be used for high-res ** profiling. */ __inline__ unsigned long long int hwtime(void){ unsigned int lo, hi; __asm__ __volatile__ ( // serialize "xorl %%eax,%%eax \n cpuid" ::: "%rax", "%rbx", "%rcx", "%rdx"); /* We cannot use "=A", since this would use %rax on x86_64 */ __asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi)); return (unsigned long long int)hi << 32 | lo; } #endif /* |
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** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.727 2008/04/03 20:09:07 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> #include "vdbeInt.h" /* ** The following global variable is incremented every time a cursor ................................................................................ ** The following routine only works on pentium-class processors. ** It uses the RDTSC opcode to read the cycle count value out of the ** processor and returns that value. This can be used for high-res ** profiling. */ __inline__ unsigned long long int hwtime(void){ unsigned int lo, hi; /* We cannot use "=A", since this would use %rax on x86_64 */ __asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi)); return (unsigned long long int)hi << 32 | lo; } #endif /* |
Changes to tool/speedtest16.c.
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** The following routine only works on pentium-class processors.
** It uses the RDTSC opcode to read the cycle count value out of the
** processor and returns that value. This can be used for high-res
** profiling.
*/
__inline__ unsigned long long int hwtime(void){
unsigned int lo, hi;
__asm__ __volatile__ ( // serialize
"xorl %%eax,%%eax \n cpuid"
::: "%rax", "%rbx", "%rcx", "%rdx");
/* We cannot use "=A", since this would use %rax on x86_64 */
__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
return (unsigned long long int)hi << 32 | lo;
}
/*
** Convert a zero-terminated ASCII string into a zero-terminated
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< < < |
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** The following routine only works on pentium-class processors.
** It uses the RDTSC opcode to read the cycle count value out of the
** processor and returns that value. This can be used for high-res
** profiling.
*/
__inline__ unsigned long long int hwtime(void){
unsigned int lo, hi;
/* We cannot use "=A", since this would use %rax on x86_64 */
__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
return (unsigned long long int)hi << 32 | lo;
}
/*
** Convert a zero-terminated ASCII string into a zero-terminated
|
Changes to tool/speedtest8.c.
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 |
** The following routine only works on pentium-class processors.
** It uses the RDTSC opcode to read the cycle count value out of the
** processor and returns that value. This can be used for high-res
** profiling.
*/
__inline__ unsigned long long int hwtime(void){
unsigned int lo, hi;
__asm__ __volatile__ ( // serialize
"xorl %%eax,%%eax \n cpuid"
::: "%rax", "%rbx", "%rcx", "%rdx");
/* We cannot use "=A", since this would use %rax on x86_64 */
__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
return (unsigned long long int)hi << 32 | lo;
}
/*
** Timers
|
< < < |
33 34 35 36 37 38 39 40 41 42 43 44 45 46 |
** The following routine only works on pentium-class processors.
** It uses the RDTSC opcode to read the cycle count value out of the
** processor and returns that value. This can be used for high-res
** profiling.
*/
__inline__ unsigned long long int hwtime(void){
unsigned int lo, hi;
/* We cannot use "=A", since this would use %rax on x86_64 */
__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
return (unsigned long long int)hi << 32 | lo;
}
/*
** Timers
|