(timestamp, block number etc.). The block
number is verified.
- pattern Fill the IO buffers with a specific pattern,
- that we can use to verify. Depending on the
- width of the pattern, fio will fill 1/2/3/4
- bytes of the buffer at the time. The pattern
- cannot be larger than a 32-bit quantity. The
- given pattern is given as a postfix to this
- option, ala: verify=pattern:0x5a. It accepts
- both hex and dec values.
-
null Only pretend to verify. Useful for testing
internals with ioengine=null, not for much
else.
size of header_interval. blocksize should divide this
evenly.
+verify_pattern=int If set, fio will fill the io buffers with this
+ pattern. Fio defaults to filling with totally random
+ bytes, but sometimes it's interesting to fill with a known
+ pattern for io verification purposes. Depending on the
+ width of the pattern, fio will fill 1/2/3/4 bytes of the
+ buffer at the time. The verify_pattern cannot be larger than
+ a 32-bit quantity.
+
verify_fatal=bool Normally fio will keep checking the entire contents
before quitting on a block verification failure. If this
option is set, fio will exit the job on the first observed
VERIFY_SHA256, /* sha256 sum data blocks */
VERIFY_SHA512, /* sha512 sum data blocks */
VERIFY_META, /* block_num, timestamp etc. */
- VERIFY_PATTERN, /* verify a specific pattern */
VERIFY_NULL, /* pretend to verify */
};
return 0;
}
-static int str_verify_cb(void *data, const char *mem)
+static int str_verify_pattern_cb(void *data, unsigned int *off)
{
struct thread_data *td = data;
- unsigned int nr, msb;
- char *pat;
+ unsigned int msb;
- if (td->o.verify != VERIFY_PATTERN)
- return 0;
-
- pat = get_opt_postfix(mem);
- if (!pat) {
- log_err("fio: missing pattern\n");
- return 1;
- }
-
- if (strstr(pat, "0x") || strstr(pat, "0X"))
- nr = strtol(pat, NULL, 16);
- else
- nr = strtol(pat, NULL, 16);
-
- msb = fls(nr);
+ msb = fls(*off);
if (msb <= 8)
td->o.verify_pattern_bytes = 1;
else if (msb <= 16)
else
td->o.verify_pattern_bytes = 4;
- td->o.verify_pattern = nr;
+ td->o.verify_pattern = *off;
return 0;
}
.name = "verify",
.type = FIO_OPT_STR,
.off1 = td_var_offset(verify),
- .cb = str_verify_cb,
.help = "Verify data written",
.def = "0",
.posval = {
.oval = VERIFY_META,
.help = "Use io information",
},
- { .ival = "pattern",
- .oval = VERIFY_PATTERN,
- .help = "Verify a specific buffer pattern",
- },
{
.ival = "null",
.oval = VERIFY_NULL,
.cb = str_verify_offset_cb,
.parent = "verify",
},
+ {
+ .name = "verify_pattern",
+ .type = FIO_OPT_INT,
+ .cb = str_verify_pattern_cb,
+ .help = "Fill pattern for IO buffers",
+ .parent = "verify",
+ },
{
.name = "verify_fatal",
.type = FIO_OPT_BOOL,
switch (verify_type) {
case VERIFY_NONE:
case VERIFY_NULL:
- case VERIFY_PATTERN:
len = 0;
break;
case VERIFY_MD5:
return EIO;
}
+ if (td->o.verify_pattern_bytes) {
+ ret = verify_io_u_pattern(td->o.verify_pattern,
+ td->o.verify_pattern_bytes,
+ p + hdr_size,
+ hdr_inc - hdr_size,
+ hdr_size % 4);
+ if (ret)
+ log_err("fio: verify failed at %llu/%u\n",
+ io_u->offset + hdr_num * hdr->len,
+ hdr->len);
+ continue;
+ }
+
switch (hdr->verify_type) {
case VERIFY_MD5:
ret = verify_io_u_md5(hdr, io_u, hdr_num);
case VERIFY_META:
ret = verify_io_u_meta(hdr, td, io_u, hdr_num);
break;
- case VERIFY_PATTERN:
- ret = verify_io_u_pattern(td->o.verify_pattern,
- td->o.verify_pattern_bytes,
- p + hdr_size,
- hdr_inc - hdr_size,
- hdr_size % 4);
- if (ret)
- log_err("fio: verify failed at %llu/%u\n",
- io_u->offset + hdr_num * hdr->len,
- hdr->len);
- break;
default:
log_err("Bad verify type %u\n", hdr->verify_type);
ret = EINVAL;
case VERIFY_META:
fill_meta(hdr, td, io_u, header_num);
break;
- case VERIFY_PATTERN:
- break;
default:
log_err("fio: bad verify type: %d\n", td->o.verify);
assert(0);