hanoidb/visualize-hanoi.sh
Kresten Krab Thorup c8e403af8c Refactor merge work computation
Now merge work computation is close to ideal.
It does not take into account the actual size
of files at each level, but we have not figured
out how to utilize that knowledge.
2012-04-30 23:34:27 +02:00

110 lines
3.1 KiB
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Executable file

#!/bin/bash
## ----------------------------------------------------------------------------
##
## hanoi: LSM-trees (Log-Structured Merge Trees) Indexed Storage
##
## Copyright 2011-2012 (c) Trifork A/S. All Rights Reserved.
## http://trifork.com/ info@trifork.com
##
## Copyright 2012 (c) Basho Technologies, Inc. All Rights Reserved.
## http://basho.com/ info@basho.com
##
## This file is provided to you under the Apache License, Version 2.0 (the
## "License"); you may not use this file except in compliance with the License.
## You may obtain a copy of the License at
##
## http://www.apache.org/licenses/LICENSE-2.0
##
## Unless required by applicable law or agreed to in writing, software
## distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
## WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
## License for the specific language governing permissions and limitations
## under the License.
##
## ----------------------------------------------------------------------------
function periodic() {
t=0
while sleep 1 ; do
let "t=t+1"
printf "%5d [" "$t"
for ((i=0; i<35; i++)) ; do
if ! [ -f "A-$i.data" ] ; then
echo -n " "
elif ! [ -f "B-$i.data" ] ; then
echo -n "-"
elif ! [ -f "C-$i.data" ] ; then
echo -n "#"
elif ! [ -f "X-$i.data" ] ; then
echo -n "="
else
echo -n "*"
fi
done
echo
done
}
merge_diff() {
SA=`ls -l A-${ID}.data 2> /dev/null | awk '{print $5}'`
SB=`ls -l B-${ID}.data 2> /dev/null | awk '{print $5}'`
SX=`ls -l X-${ID}.data 2> /dev/null | awk '{print $5}'`
if [ \( -n "$SA" \) -a \( -n "$SB" \) -a \( -n "$SX" \) ]; then
export RES=`expr ${SX}0 / \( $SA + $SB \)`
else
export RES="?"
fi
}
function dynamic() {
local old s t start now
t=0
start=`date +%s`
while true ; do
s=""
for ((i=8; i<22; i++)) ; do
if [ -f "C-$i.data" ] ; then
s="${s}C"
else
s="$s "
fi
if [ -f "B-$i.data" ] ; then
s="${s}B"
else
s="$s "
fi
if [ -f "A-$i.data" ] ; then
s="${s}A"
else
s="$s "
fi
if [ -f "X-$i.data" ] ; then
export ID="$i"
merge_diff
s="${s}$RES"
elif [ -f "M-$i.data" ] ; then
s="${s}M"
else
s="$s "
fi
s="$s|"
done
if [[ "$s" != "$old" ]] ; then
let "t=t+1"
now=`date +%s`
let "now=now-start"
free=`df -m . 2> /dev/null | tail -1 | awk '{print $4}'`
used=`du -m 2> /dev/null | awk '{print $1}' `
printf "%5d %6d [%s\n" "$t" "$now" "$s ${used}Mb (${free}Mb free)"
old="$s"
else
# Sleep a little bit:
sleep 1
fi
done
}
dynamic