e7751617 - docs: blockdev: add it to the admin-guide

Tue, 18 Jun 2019 14:47:10 +0000

docs: blockdev: add it to the admin-guideThe blockdev book basically contains user-faced documentation.Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/tools/testing/selftests/zram/README

39443104 - docs: blockdev: convert to ReST

Thu, 18 Apr 2019 20:29:24 +0000

docs: blockdev: convert to ReSTRename the blockdev documentation files to ReST, add anindex for them and adjust in order to produce a nice htmloutput via the Sphinx build system.The drbd sub-directory contains some graphs and data flows.Add those too to the documentation.At its new index.rst, let's add a :orphan: while this is not linked tothe main index.rst file, in order to avoid build warnings.Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/tools/testing/selftests/zram/README

0ad46bec - selftests/zram: replace ZRAM_LZ4_COMPRESS

Fri, 12 Aug 2016 20:49:59 +0000

selftests/zram: replace ZRAM_LZ4_COMPRESSSince commit ce1ed9f98e88("zram: delete custom lzo/lz4")we need CONFIG_CRYPTO_LZ4=y instead ofCONFIG_ZRAM_LZ4_COMPRESSSigned-off-by: Fabian Frederick Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/zram/README

f21fb798 - selftests/zram: Adding zram tests

Tue, 18 Aug 2015 07:01:59 +0000

selftests/zram: Adding zram testszram: Compressed RAM based block devices----------------------------------------The zram module creates RAM based block devices named /dev/zram( = 0, 1, ...). Pages written to these disks are compressed and storedin memory itself. These disks allow very fast I/O and compression providesgood amounts of memory savings. Some of the usecases include /tmp storage,use as swap disks, various caches under /var and maybe many more :)Statistics for individual zram devices are exported through sysfs nodes at/sys/block/zram/This patch is to validate the zram functionality. Test interacts with blockdevice /dev/zram and sysfs nodes /sys/block/zram/zram.sh: sanity check of CONFIG_ZRAM and to run zram01 and zram02 testszram01.sh: creates general purpose ram disks with different filesystemszram02.sh: creates block device for swapzram_lib.sh: create library with initialization/cleanup functionsREADME: ZRAM introduction and Kconfig required.Makefile: To run zram testszram test output-----------------./zram.sh--------------------running zram tests--------------------/dev/zram0 device file found: OKset max_comp_streams to zram device(s)/sys/block/zram0/max_comp_streams = '2' (1/1)zram max streams: OKtest that we can set compression algorithmsupported algs: [lzo] lz4/sys/block/zram0/comp_algorithm = 'lzo' (1/1)zram set compression algorithm: OKset disk size to zram device(s)/sys/block/zram0/disksize = '2097152' (1/1)zram set disksizes: OKset memory limit to zram device(s)/sys/block/zram0/mem_limit = '2M' (1/1)zram set memory limit: OKmake ext4 filesystem on /dev/zram0zram mkfs.ext4: OKmount /dev/zram0zram mount of zram device(s): OKfill zram0...zram0 can be filled with '1932' KBzram used 3M, zram disk sizes 2097152Mzram compression ratio: 699050.66:1: OKzram cleanupzram01 : [PASS]/dev/zram0 device file found: OKset max_comp_streams to zram device(s)/sys/block/zram0/max_comp_streams = '2' (1/1)zram max streams: OKset disk size to zram device(s)/sys/block/zram0/disksize = '1048576' (1/1)zram set disksizes: OKset memory limit to zram device(s)/sys/block/zram0/mem_limit = '1M' (1/1)zram set memory limit: OKmake swap with zram device(s)done with /dev/zram0zram making zram mkswap and swapon: OKzram swapoff: OKzram cleanupzram02 : [PASS]CC: Shuah Khan CC: Tyler Baker CC: Milosz Wasilewski CC: Alexey Kodanev Signed-off-by: Naresh Kamboju Signed-off-by: Alexey Kodanev Reviewed-By: Tyler Baker Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/zram/README

Changes in README

e7751617 - docs: blockdev: add it to the admin-guide

39443104 - docs: blockdev: convert to ReST

0ad46bec - selftests/zram: replace ZRAM_LZ4_COMPRESS

f21fb798 - selftests/zram: Adding zram tests