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Overview
| Comment: | Have the shell ".timer on" command cause the shell to report wall-clock time for each query (as well as user and system CPU time). |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | shell-wall-clock |
| Files: | files | file ages | folders |
| SHA1: |
5530cdc4857f7410ce6ddf53ae94c754 |
| User & Date: | dan 2013-10-30 12:30:05 |
Context
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2013-10-30
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| 12:30 | Have the shell ".timer on" command cause the shell to report wall-clock time for each query (as well as user and system CPU time). Leaf check-in: 5530cdc4 user: dan tags: shell-wall-clock | |
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2013-10-28
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| 22:33 | Formatting improvements to the WHERE-clause constraint display in the wheretrace debugging logic. check-in: 3a9e3ed9 user: drh tags: trunk | |
Changes
Changes to src/shell.c.
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#if !defined(_WIN32) && !defined(WIN32) && !defined(_WRS_KERNEL) \ && !defined(__minux) #include <sys/time.h> #include <sys/resource.h> /* Saved resource information for the beginning of an operation */ static struct rusage sBegin; /* ** Begin timing an operation */ static void beginTimer(void){ if( enableTimer ){ getrusage(RUSAGE_SELF, &sBegin); } } /* Return the difference of two time_structs in seconds */ static double timeDiff(struct timeval *pStart, struct timeval *pEnd){ return (pEnd->tv_usec - pStart->tv_usec)*0.000001 + (double)(pEnd->tv_sec - pStart->tv_sec); ................................................................................ /* ** Print the timing results. */ static void endTimer(void){ if( enableTimer ){ struct rusage sEnd; getrusage(RUSAGE_SELF, &sEnd); printf("CPU Time: user %f sys %f\n", timeDiff(&sBegin.ru_utime, &sEnd.ru_utime), timeDiff(&sBegin.ru_stime, &sEnd.ru_stime)); } } #define BEGIN_TIMER beginTimer() #define END_TIMER endTimer() #define HAS_TIMER 1 |
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#if !defined(_WIN32) && !defined(WIN32) && !defined(_WRS_KERNEL) \ && !defined(__minux) #include <sys/time.h> #include <sys/resource.h> /* Saved resource information for the beginning of an operation */ static struct TimerData { struct rusage sRusage; sqlite3_int64 iTime; } sBegin; /* ** Return the current-time according to the xCurrentTimeInt64() method ** of the default VFS (in ms). Use the result of xCurrentTime() to ** calculate an equivalent value if the VFS is too old for ** xCurrentTimeInt64(). */ static sqlite3_int64 vfsCurrentTime64(void){ sqlite3_int64 iRet; sqlite3_vfs *pVfs = sqlite3_vfs_find(0); if( pVfs->iVersion>=2 ){ pVfs->xCurrentTimeInt64(pVfs, &iRet); }else{ double t; pVfs->xCurrentTime(pVfs, &t); iRet = (sqlite3_int64)(t * 86400000.0); } return iRet; } /* ** Begin timing an operation */ static void beginTimer(void){ if( enableTimer ){ sBegin.iTime = vfsCurrentTime64(); getrusage(RUSAGE_SELF, &sBegin.sRusage); } } /* Return the difference of two time_structs in seconds */ static double timeDiff(struct timeval *pStart, struct timeval *pEnd){ return (pEnd->tv_usec - pStart->tv_usec)*0.000001 + (double)(pEnd->tv_sec - pStart->tv_sec); ................................................................................ /* ** Print the timing results. */ static void endTimer(void){ if( enableTimer ){ struct rusage sEnd; getrusage(RUSAGE_SELF, &sEnd); printf("CPU Time: user %f sys %f wall %f\n", timeDiff(&sBegin.sRusage.ru_utime, &sEnd.ru_utime), timeDiff(&sBegin.sRusage.ru_stime, &sEnd.ru_stime), (double)(vfsCurrentTime64() - sBegin.iTime) / 1000.0 ); } } #define BEGIN_TIMER beginTimer() #define END_TIMER endTimer() #define HAS_TIMER 1 |