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| author | Silvio Rhatto <rhatto@riseup.net> | 2019-05-12 13:15:07 -0300 |
|---|---|---|
| committer | Silvio Rhatto <rhatto@riseup.net> | 2019-05-12 13:15:07 -0300 |
| commit | e2ed854f9213e63345522a1891098d2e3b6fee03 (patch) | |
| tree | f75245e6964ee5d36308028f40a0987d22b4242a | |
| parent | 1703d6f8cfae4973ed5d84e60f3151b707303530 (diff) | |
| download | hydra-e2ed854f9213e63345522a1891098d2e3b6fee03.tar.gz hydra-e2ed854f9213e63345522a1891098d2e3b6fee03.tar.bz2 | |
Provision: partition alignment: comments
| -rwxr-xr-x | share/hydractl/provision | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/share/hydractl/provision b/share/hydractl/provision index ac78699..50c689a 100755 --- a/share/hydractl/provision +++ b/share/hydractl/provision @@ -201,6 +201,9 @@ if [ "$num_devices" != "1" ]; then syst_device="$device" else # Partition alignment + # See https://rainbow.chard.org/2013/01/30/how-to-align-partitions-for-best-performance-using-parted/ + # https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-block + # https://people.redhat.com/msnitzer/docs/io-limits.txt megabyte="$((1024*1024))" block="`echo $device | sed -e 's|^/dev/||'`" optimal_size="`cat /sys/block/$block/queue/optimal_io_size`" @@ -209,10 +212,6 @@ else start="$((($optimal_size + $alignment_offset) / $block_size))" optimal_sector_size="$(($optimal_size / $block_size))" - #start="`awk -v x=$(cat /sys/block/$block/queue/optimal_io_size) \ - # -v y=$(cat /sys/block/$block/alignment_offset) \ - # -v z=$(cat /sys/block/$block/queue/physical_block_size) 'BEGIN { print ( x + y ) / z }'`" - # Sector size for a 1MB partition bios_grub_size="$(($megabyte/$block_size))" bios_grub_end="$(($start + $bios_grub_size - 1))" |