pkarashchenko commented on code in PR #6601:
URL: https://github.com/apache/incubator-nuttx/pull/6601#discussion_r918663893
##########
drivers/usbdev/Kconfig:
##########
@@ -799,6 +799,20 @@ config USBMSC_NRDREQS
---help---
The number of write/read requests that can be in flight
+config USBMSC_WRMULTIPLE
+ bool "Write multiple blocks at once if possible"
+ default n
+ ---help---
+ Store multiple blocks and write them in a single request. This
+ speeds up the writing significantly with eMMC devices, for
example,
+ because writing 512 bytes may be as fast as writing the complete
+ SUPER_PAGE_SIZE (see extended CSD [225] bits 0-3), which may be
up
+ to 64Kb. Real-life example with different block sizes, using
the
+ dd command with argument bs=512, bs=8k (USBMSC_NWRREQS = 4, and
16):
+ 512b: 470 kb/s, 8k: 5.3 Mb/s. This is more than a tenfold
increase
Review Comment:
Please change spaces to TABs here
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