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/* Test 71 - full hierachy storage test.
*
* Black box test of storage: test consistent file contents
* under various working sets and access patterns.
*
* Using varying working set sizes, exercise various cache
* layers separately.
*
* There is a 'smoke test' mode, suitable for running interactively,
* and a 'regression test' (big) mode, meant for batch invocation only
* as it takes very long.
*/
#include <sys/types.h>
#include <sys/ioc_memory.h>
#include <stdio.h>
#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include "common.h"
#include "testcache.h"
int
dowriteblock(int b, int blocksize, u32_t seed, char *data)
{
u64_t offset;
int fd;
get_fd_offset(b, blocksize, &offset, &fd);
if(pwrite(fd, data, blocksize, offset) < blocksize) {
perror("pwrite");
return -1;
}
return blocksize;
}
int
readblock(int b, int blocksize, u32_t seed, char *data)
{
u64_t offset;
int fd;
get_fd_offset(b, blocksize, &offset, &fd);
if(pread(fd, data, blocksize, offset) < blocksize) {
perror("pread");
return -1;
}
return blocksize;
}
void testend(void) { }
int
main(int argc, char *argv[])
{
int iter = 2;
start(71);
cachequiet(!bigflag);
if(bigflag) iter = 3;
makefiles(MAXFILES);
/* Try various combinations working set sizes
* and block sizes in order to specifically
* target the primary cache, then primary+secondary
* cache, then primary+secondary cache+secondary
* cache eviction.
*/
if(dotest(PAGE_SIZE, 100, iter)) e(5);
if(dotest(PAGE_SIZE*2, 100, iter)) e(2);
if(dotest(PAGE_SIZE*3, 100, iter)) e(3);
if(dotest(PAGE_SIZE, 20000, iter)) e(5);
if(bigflag) {
u32_t totalmem, freemem, cachedmem;
if(dotest(PAGE_SIZE, 150000, iter)) e(5);
getmem(&totalmem, &freemem, &cachedmem);
if(dotest(PAGE_SIZE, totalmem*1.5, iter)) e(6);
}
quit();
return 0;
}
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