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authorMiquel Raynal <miquel.raynal@bootlin.com>2021-10-13 12:08:07 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2021-10-13 13:16:49 +0200
commita2c6bbcf2f8e32532e64350ab76609e5db3c431b (patch)
tree88dbf5217093dec7ad427bd8c360d95fcaf9f329
parentf0b32c7ba5136151a961c3a43c8ff430b33d7c33 (diff)
mtd-tests: Read and write pages during speed testsHEADmaster
The speed test does reads and writes of different sizes: - eraseblock - page - two pages At least this is the theory because, as opposed to the legacy kernel module doing the same measurement, the userspace tool uses the subpage size (hence accessing the same page 4, 8 or 16 times depending on the subpage setting). Of course if the controller does not support subpages, this issue is not visible. Use mtd.min_io_size instead for non-NOR devices in order to get the right bandwidth (at least one that fits the logs). Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
-rw-r--r--tests/mtd-tests/flash_speed.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/mtd-tests/flash_speed.c b/tests/mtd-tests/flash_speed.c
index 0058269..2fc70a1 100644
--- a/tests/mtd-tests/flash_speed.c
+++ b/tests/mtd-tests/flash_speed.c
@@ -343,7 +343,7 @@ int main(int argc, char **argv)
puts("not NAND flash, assume page size is 512 bytes.");
pgsize = 512;
} else {
- pgsize = mtd.subpage_size;
+ pgsize = mtd.min_io_size;
}
pgcnt = mtd.eb_size / pgsize;