Both sides previous revisionPrevious revisionNext revision | Previous revisionLast revisionBoth sides next revision |
simple_sequential_baseline_test [2021/10/09 15:14] – external edit 127.0.0.1 | simple_sequential_baseline_test [2022/10/18 18:29] – [Odroid M1 / Samsung SSD 970 EVO Plus 250GB] admin |
---|
From: [[https://communities.intel.com/community/itpeernetwork/blog/2013/11/22/making-friends-with-your-new-ssd--a-simple-baseline]] | ===== Direct Write Test, simple benchmark with dd ===== |
| |
**Direct Write Test, simple benchmark with dd** | From: [[https://communities.intel.com/community/itpeernetwork/blog/2013/11/22/making-friends-with-your-new-ssd--a-simple-baseline]] |
| |
First off remember system OS'es, and controllers, are always setup for caching and buffering, so use DirectIO, here is an example syntax that should work on most flavors of Linux/Unix, or try Cygwin on Windows to achieve the same. So to me it seems amazingly universal but you tell me, is there a more universal tool than "dd" out there that's more powerful and more standard for a fast memory to device copy test. | First off remember system OS'es, and controllers, are always setup for caching and buffering, so use DirectIO, here is an example syntax that should work on most flavors of Linux/Unix, or try Cygwin on Windows to achieve the same. So to me it seems amazingly universal but you tell me, is there a more universal tool than "dd" out there that's more powerful and more standard for a fast memory to device copy test. |
Direct read: 1073741824 bytes (1.1 GB) copied, 2.17759 s, 493 MB/s | Direct read: 1073741824 bytes (1.1 GB) copied, 2.17759 s, 493 MB/s |
Read cache: 1073741824 bytes (1.1 GB) copied, 0.110266 s, 9.7 GB/s | Read cache: 1073741824 bytes (1.1 GB) copied, 0.110266 s, 9.7 GB/s |
| </code> |
| |
| ==== Odroid M1 / Samsung SSD 970 EVO Plus 250GB ==== |
| <code>Direct write: 4294967296 bytes (4.3 GB, 4.0 GiB) copied, 3.82946 s, 1.1 GB/s |
| Direct read: 4294967296 bytes (4.3 GB, 4.0 GiB) copied, 2.96632 s, 1.4 GB/s |
| Read cache: 4294967296 bytes (4.3 GB, 4.0 GiB) copied, 2.86754 s, 1.5 GB/s |
</code> | </code> |
| |