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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/script/smr_benchmark/linearSMRCopy.sh | |
parent | Initial commit. (diff) | |
download | ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.tar.xz ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/script/smr_benchmark/linearSMRCopy.sh')
-rwxr-xr-x | src/script/smr_benchmark/linearSMRCopy.sh | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/script/smr_benchmark/linearSMRCopy.sh b/src/script/smr_benchmark/linearSMRCopy.sh new file mode 100755 index 000000000..1ff2695c6 --- /dev/null +++ b/src/script/smr_benchmark/linearSMRCopy.sh @@ -0,0 +1,69 @@ +#! /usr/bin/env bash + +# copy a linear file from srcFile to destination SMRDisk in a loop until writeSize MBs is written +# SMRDisk is the SMR Host Aware / Host Managed Disk eg. /dev/sdb + +usage(){ + echo "linearSMRCopy.sh <srcFile> <SMRDisk> <writeSize (MB)>" +} + +if [ "$#" -lt 3 ]; then + usage + exit +fi + +if [ "$(id -u)" != "0" ]; then + echo "Please run as sudo user" + exit +fi + +if which zbc_open_zone > /dev/null 2>&1 && which zbc_read_zone > /dev/null 2>&1 && which zbc_write_zone > /dev/null 2>&1 ; then + echo "libzbc commands present... refreshing zones" + # reset all write pointers before starting to write + sudo zbc_reset_write_ptr /dev/sdb -1 +else + echo "libzbc commands not detected. Please install libzbc" + exit +fi + +srcFile=$1 +SMRDisk=$2 +writeSize=$3 +iosize=10240 + +numberOfSectors=$(($writeSize * 2048)) + +smrZoneStart=33554432 # TODO query this from SMR drive + +#dd if=$srcFile of=$destDisk seek=$smrZoneStart bs=512 + +fileSize=`stat --printf="%s" $srcFile` + +if [ "$(($fileSize % 512))" -ne 0 ]; then + echo "$srcFile not 512 byte aligned" + exit +fi + +sectorsLeftToWrite=$(($fileSize / 512)) + +znum=64 # TODO query this from SMR Drive + +zoneLength=524288 # number of sectors in each zone TODO query from SMR drive + +writeOffset=$smrZoneStart + +sectorsLeftToWrite=$numberOfSectors + +echo "write begin sectors Left = $sectorsLeftToWrite, writeOffset = $writeOffset zone Num = $znum" + +while [ "$sectorsLeftToWrite" -gt 0 ]; +do + sudo zbc_open_zone $SMRDisk $znum + sudo time zbc_write_zone -f $srcFile -loop $SMRDisk $znum $iosize + sudo zbc_close_zone /dev/sdb $znum + writeOffset=$(($writeOffset+$zoneLength)) + znum=$(($znum+1)) + sectorsLeftToWrite=$(($sectorsLeftToWrite - $zoneLength)) +done + +echo "write end sectors Left = $sectorsLeftToWrite, writeOffset = $writeOffset zone Num = $znum" |