500G的写
- [email protected]:/data2# dd if=/dev/zero of=test.dbf bs=4k count=30000 oflag=direct
- ^C10721+0 records in
- 10721+0 records out
- 43913216 bytes (44 MB, 42 MiB) copied, 9.46432 s, 4.6 MB/s
-
- [email protected]:/data2# dd if=/dev/zero of=test.dbf bs=16k count=30000 oflag=direct
- ^C6069+0 records in
- 6069+0 records out
- 99434496 bytes (99 MB, 95 MiB) copied, 5.50646 s, 18.1 MB/s
-
- [email protected]:/data2# dd if=/dev/zero of=test.dbf bs=256k count=30000 oflag=direct
- ^C960+0 records in
- 960+0 records out
- 251658240 bytes (252 MB, 240 MiB) copied, 3.87498 s, 64.9 MB/s
-
- [email protected]:/data2# dd if=/dev/zero of=test.dbf bs=1M count=30000 oflag=direct
- ^C372+0 records in
- 372+0 records out
- 390070272 bytes (390 MB, 372 MiB) copied, 3.73321 s, 104 MB/s
-
- [email protected]:/data2# dd if=/dev/zero of=test.dbf bs=8M count=30000 oflag=direct
- ^C61+0 records in
- 61+0 records out
- 511705088 bytes (512 MB, 488 MiB) copied, 2.36245 s, 217 MB/s
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