Aurelien Jarno a169d90667 nvs: avoid reading multiple times the same area ... The current NVS code checks for an empty ATE using th _nvs_flash_cmp_const() function. This function loads the data and compare them to a value. This means that when executed multiple on the same area, the data get reloaded multiple time. This might have a noticeable performance impact with an SPI flash. Instead define a function _nvs_ate_cmp_const to compare an already read struct nvs_ate with a constant value. Then replace the calls to _nvs_flash_cmp_const() on struct nvs_ate by _nvs_flash_ate_rd() followed by _nvs_ate_cmp_const(). This also has the advantage of explicitly checking for errors instead of testing the error and the result of the comparison at the same time. Tested on a Nucleo L432KC board with the nvs sample. The maximum initialization time (ie just before running the first garbage collector) goes down to 6213 µs from 7350 µs. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>		2019-01-02 13:03:09 +01:00
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app_memory
bluetooth
console
cpp
debug	doc: regular misspelling scan	2018-12-26 13:27:14 -05:00
dfu	samples: subsys: usb: dfu: Fix build error for intel_s1000	2018-12-30 16:24:33 -05:00
disk	crc: Move crc7 into CRC single header	2018-12-30 16:24:10 -05:00
fb	kconfig: Have the 'framebuffer' menu depend on it being enabled	2018-12-30 16:24:50 -05:00
fs	nvs: avoid reading multiple times the same area	2019-01-02 13:03:09 +01:00
logging
mgmt
net	doc: regular misspelling scan	2018-12-26 13:27:14 -05:00
power	power: rename api sys_soc -> sys_	2018-12-28 16:16:28 -05:00
random
settings
shell	shell: Changing shell_history_get signature	2018-12-28 17:47:46 -05:00
stats
storage
usb	usb: class: dfu: Add a worker thread to flash data from usb to flash	2018-12-30 16:24:33 -05:00
CMakeLists.txt
Kconfig