+#define _FILE_OFFSET_BITS 64
#define _XOPEN_SOURCE 500
#define _GNU_SOURCE
#include <string.h>
#include <unistd.h>
#include <sys/ioctl.h>
+#include <sys/klog.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
unsigned char zero[4096];
+bool klog = false;
+
#define Pread(fd, buf, size, offset) do { \
int _read = 0, _r; \
while (_read < size) { \
n = 0 / (double) 0;
return x;
}
-
+
do {
x = random() / (double) (RAND_MAX / 2) - 1;
y = random() / (double) (RAND_MAX / 2) - 1;
int writecount;
};
+void flushlog(void)
+{
+ char logbuf[1 << 21];
+ int w = 0, len;
+ static int fd;
+
+ if (!klog)
+ return;
+
+ if (!fd) {
+ klogctl(8, 0, 6);
+
+ sprintf(logbuf, "log.%i", abs(random()) % 1000);
+ fd = open(logbuf, O_WRONLY|O_CREAT|O_TRUNC, 0644);
+
+ if (fd == -1) {
+ perror("Error opening log file");
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ len = klogctl(4, logbuf, 1 << 21);
+
+ if (len == -1) {
+ perror("Error reading kernel log");
+ exit(EXIT_FAILURE);
+ }
+
+ while (w < len) {
+ int r = write(fd, logbuf + w, len - w);
+ if (r == -1) {
+ perror("Error writing log");
+ exit(EXIT_FAILURE);
+ }
+ w += r;
+ }
+}
+
+void aio_loop(int nr)
+{
+
+}
+
+void usage()
+{
+ exit(EXIT_FAILURE);
+}
+
int main(int argc, char **argv)
{
- bool walk = false, randsize = false, verbose = false, csum = false, destructive = false;
- int fd1, fd2 = 0, direct = 0, nbytes = 4096, j;
- unsigned long size, i, offset = 0, done = 0;
+ bool walk = false, randsize = false, verbose = false, csum = false, rtest = false, wtest = false;
+ int fd1, fd2 = 0, direct = 0, nbytes = 4096, j, o;
+ unsigned long size, i, offset = 0, done = 0, unique = 0, benchmark = 0;
void *buf1 = NULL, *buf2 = NULL;
struct pagestuff *pages, *p;
unsigned char c[16];
time_t last_printed = 0;
+ extern char *optarg;
RC4_KEY writedata;
RC4_set_key(&writedata, 16, bcache_magic);
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "direct") == 0)
+ while ((o = getopt(argc, argv, "dnwvscwlb:")) != EOF)
+ switch (o) {
+ case 'd':
direct = O_DIRECT;
- else if (strcmp(argv[i], "walk") == 0)
+ break;
+ case 'n':
walk = true;
- else if (strcmp(argv[i], "verbose") == 0)
+ break;
+ case 'v':
verbose = true;
- else if (strcmp(argv[i], "size") == 0)
+ break;
+ case 's':
randsize = true;
- else if (strcmp(argv[i], "csum") == 0)
+ break;
+ case 'c':
csum = true;
- else if (strcmp(argv[i], "write") == 0)
- destructive = true;
- else
break;
- }
+ case 'w':
+ wtest = true;
+ break;
+ case 'r':
+ rtest = true;
+ break;
+ case 'l':
+ klog = true;
+ break;
+ case 'b':
+ benchmark = atol(optarg);
+ break;
+ default:
+ usage();
+ }
+
+ argv += optind;
+ argc -= optind;
+
+ if (!rtest && !wtest)
+ rtest = true;
- if (i + 1 > argc) {
+ if (argc < 1) {
printf("Please enter a device to test\n");
exit(EXIT_FAILURE);
}
- if (i + 2 > argc && !csum) {
+ if (!csum && !benchmark && argc < 2) {
printf("Please enter a device to compare against\n");
exit(EXIT_FAILURE);
}
- fd1 = open(argv[i], (destructive ? O_RDWR : O_RDONLY)|direct);
- if (!csum)
- fd2 = open(argv[i + 1], (destructive ? O_RDWR : O_RDONLY)|direct);
+ fd1 = open(argv[0], (wtest ? O_RDWR : O_RDONLY)|direct);
+ if (!csum && !benchmark)
+ fd2 = open(argv[1], (wtest ? O_RDWR : O_RDONLY)|direct);
if (fd1 == -1 || fd2 == -1) {
perror("Error opening device");
}
size = getblocks(fd1);
- if (!csum)
+ if (!csum && !benchmark)
size = MIN(size, getblocks(fd2));
size = size / 8 - 16;
}
//setvbuf(stdout, NULL, _IONBF, 0);
- for (i = 0;; i++) {
- bool writing = destructive && (i & 1);
+ for (i = 0; !benchmark || i < benchmark; i++) {
+ bool writing = (wtest && (i & 1)) || !rtest;
nbytes = randsize ? drand48() * 16 + 1 : 1;
nbytes <<= 12;
offset %= size;
offset <<= 12;
+ if (!(i % 200))
+ flushlog();
+
if (!verbose) {
time_t now = time(NULL);
if (now - last_printed >= 2) {
goto print;
}
} else
-print: printf("Loop %6li offset %9li sectors %3i, %6lu mb done\n",
- i, offset >> 9, nbytes >> 9, done >> 11);
+print: printf("Loop %6li offset %9li sectors %3i, %6lu mb done, %6lu mb unique\n",
+ i, offset >> 9, nbytes >> 9, done >> 11, unique >> 11);
done += nbytes >> 9;
if (!writing)
Pread(fd1, buf1, nbytes, offset);
- if (!writing && !csum)
+ if (!writing && !csum && !benchmark)
Pread(fd2, buf2, nbytes, offset);
for (j = 0; j < nbytes; j += 4096) {
memcpy(&p->csum[0], c, 16);
} else if (memcmp(&p->csum[0], c, 16))
goto bad;
- } else if (!writing &&
+ } else if (!writing && !benchmark &&
memcmp(buf1 + j,
buf2 + j,
4096))
goto bad;
+ if (!p->writecount && !p->readcount)
+ unique += 8;
+
writing ? p->writecount++ : p->readcount++;
}
if (writing)
Pwrite(fd1, buf1, nbytes, offset);
- if (writing && !csum)
+ if (writing && !csum && !benchmark)
Pwrite(fd2, buf2, nbytes, offset);
}
+ printf("Loop %6li offset %9li sectors %3i, %6lu mb done, %6lu mb unique\n",
+ i, offset >> 9, nbytes >> 9, done >> 11, unique >> 11);
+ exit(EXIT_SUCCESS);
err:
perror("IO error");
+ flushlog();
exit(EXIT_FAILURE);
bad:
- printf("Bad read! loop %li offset %li sectors %i, sector %i, readcount %i writecount %i\n",
- i, offset >> 9, nbytes >> 9, j >> 9, p->readcount, p->writecount);
+ printf("Bad read! loop %li offset %li readcount %i writecount %i\n",
+ i, (offset + j) >> 9, p->readcount, p->writecount);
if (!memcmp(&p->oldcsum[0], c, 16))
printf("Matches previous csum\n");
+ flushlog();
exit(EXIT_FAILURE);
}
projects / bcachefs-tools-debian / blobdiff