Commit Graph

18 Commits

Author SHA1 Message Date
Rui Salvaterra
835c932ccb zram-swap: init: replace backticks with $()
This replaces deprecated backticks by more versatile $(...) syntax.

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
[add commit description]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-06-30 19:03:15 +02:00
Maxim Storchak
5f07b6f367 zram-swap: support swap priority
If zram-backed swap is added after an existing swap, it gets a lower
priority. Assiming that usually all other swaps are slower, there should
be a way to assign a higher priority to zram swap.

Signed-off-by: Maxim Storchak <m.storchak@gmail.com>
2020-01-15 20:49:00 +01:00
Emil Muratov
a9deed62af zram-swap: Add extra commands for status/compaction
This patch adds two new commands:
  zram status - shows memory stats for all zram swaps
  zram compaction - trigger compaction for all zram swaps

Signed-off-by: Emil Muratov <gpm@hotplug.ru>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2019-07-07 13:02:06 +02:00
Emil Muratov
b062c90f47 zram-swap: Add zram compaction and statistics info output
Executing '/etc/init.d/zram start' during runtime (with a swap being already
mounted) triggers zram device compaction and prints out nice stats info about
zram memory usage

Signed-off-by: Emil Muratov <gpm@hotplug.ru>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com> [use IEC's MiB unit]
2019-07-07 13:02:06 +02:00
Emil Muratov
c0d93432f2 zram-swap: Fix busybox dependency check
- fix dependency on BUSYBOX_CONFIG_SWAPONOFF (removed in 84da2a6)
   - add busybox defaults checking (fix zram-swap always installs swap-utils
     and libblkid as dependency, even if busybox includes mkswap by default)

Signed-off-by: Emil Muratov <gpm@hotplug.ru>
2019-07-07 13:02:06 +02:00
Emil Muratov
bbf46c9f8f zram-swap: bump pkg version
Signed-off-by: Emil Muratov <gpm@hotplug.ru>
2018-09-29 17:23:11 +02:00
Emil Muratov
70d3ffb47f zram-swap: Add "max compression streams" configuration option
Config option to limit maximum compression streams per zram dev for
multicore CPU's. This could be defined via 'zram_comp_streams' option in
the 'system' section of '/etc/config/system' file or via cli (for e.x.
with 'uci set system.@System[0].zram_comp_streams=2 && uci commit
system'). Default is number of logical CPU cores.

Signed-off-by: Emil Muratov <gpm@hotplug.ru>
2018-09-29 17:23:11 +02:00
Emil Muratov
814cae7362 zram-swap: fix number of created zram devices for multicore CPU's
Use only one zram swap device of the specified $size instead of
[N x $size] devices for multicore CPUs Now zram module uses multiple
compression streams for each dev by default, so we do not need to create
several zram devs to utilize multicore CPUs.

Signed-off-by: Emil Muratov <gpm@hotplug.ru>
2018-09-29 17:23:11 +02:00
Emil Muratov
9edc1fe8ab zram-swap: fix zram dev reset for multicore cpu devices
* "zram stop" could reset up to $(num_of_cores) zram devices even if
   some of those were not mounted as swap dev's. This fix tries to
   enumerate mounted swap zram dev's before making a reset

 * remove hot-added zram devs on stop (except zram0)

Signed-off-by: Emil Muratov <gpm@hotplug.ru>
2018-09-29 17:23:11 +02:00
Emil Muratov
b9e89adfb7 zram-swap: compression algorithm configuration option
Compression algorithms for zram are provided by kernel crypto API, could
be any of [lzo|zl4|deflate|<some_more>] depending on kernel modules.
Compress algo for zram-swap could be defined via 'zram_comp_algo' option
in 'system' section of '/etc/config/system' file, or via cli (for e.x.
with 'uci set system.@System[0].zram_comp_algo=lz4 && uci commit
system'). check available algo's via 'cat /sys/block/zram0
/comp_algorithm'

Signed-off-by: Emil Muratov <gpm@hotplug.ru>
2018-09-29 17:23:11 +02:00
Samuel Casa
65e9561b3d zram-swap: Shell cosmetic
Signed-off-by: Samuel Casa <samuel.casa@neratec.com>
2018-09-24 19:08:59 +02:00
Samuel Casa
b291517fdf zram-swap: remove trailing whitespaces in init script
Signed-off-by: Samuel Casa <samuel.casa@neratec.com>
[slightly reword subject]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2018-09-24 19:08:59 +02:00
Conn O'Griofa
f362dc154d zram-swap: CONFIG_PROCD_ZRAM_TMPFS compatibility
Enable CONFIG_PROCD_ZRAM_TMPFS compatibility via two changes to list_cpu_idx():
* detect if /tmp is being used by /dev/zram0; if yes, offset initial value by 1 to skip first zram device.
* hot-add /dev/zram1, if not already present.

Signed-off-by: Conn O'Griofa >connogriofa@gmail.com>
2016-09-05 07:12:00 +02:00
Luka Perkov
75078acd93 cosmetic: remove trailing whitespaces
Signed-off-by: Luka Perkov <luka@openwrt.org>

SVN-Revision: 47197
2015-10-15 22:12:13 +00:00
John Crispin
74a3a77bcd license info - revert r43155
turns out that r43155 adds duplicate info.

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 43167
2014-11-03 09:56:44 +00:00
John Crispin
c10d97484a Add more license tags with SPDX identifiers
Note, that licensing stuff is a nightmare: many packages does not clearly
state their licenses, and often multiple source files are simply copied
together - each with different licensing information in the file headers.

I tried hard to ensure, that the license information extracted into the OpenWRT's
makefiles fit the "spirit" of the packages, e.g. such small packages which
come without a dedicated source archive "inherites" the OpenWRT's own license
in my opinion.

However, I can not garantee that I always picked the correct information
and/or did not miss license information.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

SVN-Revision: 43155
2014-11-03 08:01:08 +00:00
Hauke Mehrtens
0ade818cb7 zram-swap: fix dependencies
swapon/swapoff are no longer provided by swap-utils; they are provided
by block-mount instead.

Signed-off-by: Nathan Hintz <nlhintz@hotmail.com>

SVN-Revision: 38795
2013-11-13 18:42:45 +00:00
John Crispin
4ebf19b48f packages: clean up the package folder
Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 37007
2013-06-21 16:54:37 +00:00