49b9165251
. test74 for mmap functionality . vm: add a mem_file memory type that specifies an mmap()ped memory range, backed by a file . add fdref, an object that keeps track of FD references within VM per process and so knows how to de-duplicate the use of FD's by various mmap()ped ranges; there can be many more than there can be FD's . turned off for now, enable with 'filemap=1' as boot option Change-Id: I640b1126cdaa522a0560301cf6732b7661555672
96 lines
1.8 KiB
C
96 lines
1.8 KiB
C
/* Test 71 - full hierachy storage test.
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*
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* Black box test of storage: test consistent file contents
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* under various working sets and access patterns.
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*
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* Using varying working set sizes, exercise various cache
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* layers separately.
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*
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* There is a 'smoke test' mode, suitable for running interactively,
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* and a 'regression test' (big) mode, meant for batch invocation only
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* as it takes very long.
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*/
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#include <sys/types.h>
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#include <sys/ioc_memory.h>
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#include <stdio.h>
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include "common.h"
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#include "testcache.h"
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int
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dowriteblock(int b, int blocksize, u32_t seed, char *data)
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{
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u64_t offset;
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int fd;
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get_fd_offset(b, blocksize, &offset, &fd);
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if(pwrite(fd, data, blocksize, offset) < blocksize) {
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perror("pwrite");
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return -1;
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}
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return blocksize;
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}
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int
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readblock(int b, int blocksize, u32_t seed, char *data)
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{
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u64_t offset;
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int fd;
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get_fd_offset(b, blocksize, &offset, &fd);
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if(pread(fd, data, blocksize, offset) < blocksize) {
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perror("pread");
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return -1;
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}
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return blocksize;
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}
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void testend(void) { }
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int
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main(int argc, char *argv[])
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{
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int iter = 2;
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start(71);
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cachequiet(!bigflag);
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if(bigflag) iter = 3;
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makefiles(MAXFILES);
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/* Try various combinations working set sizes
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* and block sizes in order to specifically
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* target the primary cache, then primary+secondary
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* cache, then primary+secondary cache+secondary
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* cache eviction.
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*/
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if(dotest(PAGE_SIZE, 100, iter)) e(5);
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if(dotest(PAGE_SIZE*2, 100, iter)) e(2);
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if(dotest(PAGE_SIZE*3, 100, iter)) e(3);
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if(dotest(PAGE_SIZE, 20000, iter)) e(5);
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if(bigflag) {
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u32_t totalmem, freemem, cachedmem;
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if(dotest(PAGE_SIZE, 150000, iter)) e(5);
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getmem(&totalmem, &freemem, &cachedmem);
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if(dotest(PAGE_SIZE, totalmem*1.5, iter)) e(6);
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}
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quit();
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return 0;
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}
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