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zram: simplified totalmem calculation for zram.nix

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This commit is contained in:
Roger Qiu 2015-12-15 23:07:08 +11:00
parent a7ff459335
commit 5d3b1b84f5
1 changed files with 2 additions and 4 deletions
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4
nixos/modules/config/zram.nix
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@ -99,10 +99,8 @@ in
set -u set -u
set -o pipefail set -o pipefail
PATH=${pkgs.procps}/bin:${pkgs.gnugrep}/bin:${pkgs.gnused}/bin
# Calculate memory to use for zram # Calculate memory to use for zram
totalmem=$(free | grep -e "^Mem:" | sed -e 's/^Mem: *//' -e 's/ *.*//') totalmem=$(${pkgs.gnugrep}/bin/grep 'MemTotal: ' /proc/meminfo | ${pkgs.gawk}/bin/awk '{print $2}')
mem=$(((totalmem * ${toString cfg.memoryPercent} / 100 / ${toString cfg.numDevices}) * 1024)) mem=$(((totalmem * ${toString cfg.memoryPercent} / 100 / ${toString cfg.numDevices}) * 1024))
echo $mem > /sys/class/block/${dev}/disksize echo $mem > /sys/class/block/${dev}/disksize