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added stress test for heavy i/o in ziplists

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This commit is contained in:
Pieter Noordhuis 2010-06-01 17:57:51 +02:00
parent b84186ff2d
commit ffc1585267
1 changed files with 37 additions and 0 deletions
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37
ziplist.c
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@ -581,6 +581,7 @@ void ziplistRepr(unsigned char *zl) {
} }
#ifdef ZIPLIST_TEST_MAIN #ifdef ZIPLIST_TEST_MAIN
#include <sys/time.h>
unsigned char *createList() { unsigned char *createList() {
unsigned char *zl = ziplistNew(); unsigned char *zl = ziplistNew();
@ -610,6 +611,35 @@ unsigned char *createIntList() {
return zl; return zl;
} }
long long usec(void) {
struct timeval tv;
gettimeofday(&tv,NULL);
return (((long long)tv.tv_sec)*1000000)+tv.tv_usec;
}
void stress(int pos, int num, int maxsize, int dnum) {
int i,j,k;
unsigned char *zl;
char posstr[2][5] = { "HEAD", "TAIL" };
long long start;
for (i = 0; i < maxsize; i+=dnum) {
zl = ziplistNew();
for (j = 0; j < i; j++) {
zl = ziplistPush(zl,(unsigned char*)"quux",4,ZIPLIST_TAIL);
}
/* Do num times a push+pop from pos */
start = usec();
for (k = 0; k < num; k++) {
zl = ziplistPush(zl,(unsigned char*)"quux",4,pos);
zl = ziplistDeleteRange(zl,0,1);
}
printf("List size: %8d, bytes: %8d, %dx push+pop (%s): %6lld usec\n",
i,ZIPLIST_BYTES(zl),num,posstr[pos],usec()-start);
zfree(zl);
}
}
int main(int argc, char **argv) { int main(int argc, char **argv) {
unsigned char *zl, *p; unsigned char *zl, *p;
unsigned char *entry; unsigned char *entry;
@ -918,6 +948,13 @@ int main(int argc, char **argv) {
printf("SUCCESS\n"); printf("SUCCESS\n");
} }
printf("Stress with variable ziplist size:\n");
{
stress(ZIPLIST_HEAD,100000,16384,256);
stress(ZIPLIST_TAIL,100000,16384,256);
}
return 0; return 0;
} }
#endif #endif