perf charts: use abs value when setting chart bg color
perf charts: use abs value when setting chart bg color
migue/voltdb,migue/voltdb,simonzhangsm/voltdb,paulmartel/voltdb,VoltDB/voltdb,VoltDB/voltdb,paulmartel/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,migue/voltdb,deerwalk/voltdb,paulmartel/voltdb,simonzhangsm/voltdb,migue/voltdb,migue/voltdb,deerwalk/voltdb,paulmartel/voltdb,deerwalk/voltdb,paulmartel/voltdb,paulmartel/voltdb,paulmartel/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,deerwalk/voltdb,VoltDB/voltdb,VoltDB/voltdb,migue/voltdb,simonzhangsm/voltdb,paulmartel/voltdb,migue/voltdb,migue/voltdb,VoltDB/voltdb