csvbenchmark app: take elapsed time from wall-clock rather than scraping the log (cherry picked from commit 57a9d13c0fd6fbace44a073e328fe1f5f9124824)
csvbenchmark app: take elapsed time from wall-clock rather than scraping the log
(cherry picked from commit 57a9d13c0fd6fbace44a073e328fe1f5f9124824)

ingted/voltdb,deerwalk/voltdb,flybird119/voltdb,ingted/voltdb,wolffcm/voltdb,simonzhangsm/voltdb,ingted/voltdb,creative-quant/voltdb,simonzhangsm/voltdb,zuowang/voltdb,migue/voltdb,flybird119/voltdb,migue/voltdb,wolffcm/voltdb,creative-quant/voltdb,paulmartel/voltdb,VoltDB/voltdb,kumarrus/voltdb,migue/voltdb,wolffcm/voltdb,wolffcm/voltdb,creative-quant/voltdb,paulmartel/voltdb,VoltDB/voltdb,VoltDB/voltdb,kumarrus/voltdb,zuowang/voltdb,wolffcm/voltdb,deerwalk/voltdb,deerwalk/voltdb,zuowang/voltdb,zuowang/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,creative-quant/voltdb,kumarrus/voltdb,migue/voltdb,simonzhangsm/voltdb,kumarrus/voltdb,migue/voltdb,creative-quant/voltdb,simonzhangsm/voltdb,paulmartel/voltdb,creative-quant/voltdb,deerwalk/voltdb,migue/voltdb,zuowang/voltdb,deerwalk/voltdb,kumarrus/voltdb,wolffcm/voltdb,ingted/voltdb,simonzhangsm/voltdb,flybird119/voltdb,flybird119/voltdb,wolffcm/voltdb,simonzhangsm/voltdb,kumarrus/voltdb,paulmartel/voltdb,deerwalk/voltdb,VoltDB/voltdb,flybird119/voltdb,ingted/voltdb,wolffcm/voltdb,ingted/voltdb,paulmartel/voltdb,deerwalk/voltdb,zuowang/voltdb,flybird119/voltdb,kumarrus/voltdb,kumarrus/voltdb,ingted/voltdb,migue/voltdb,flybird119/voltdb,paulmartel/voltdb,paulmartel/voltdb,creative-quant/voltdb,creative-quant/voltdb,zuowang/voltdb,migue/voltdb,deerwalk/voltdb,paulmartel/voltdb,ingted/voltdb,VoltDB/voltdb,VoltDB/voltdb,zuowang/voltdb,flybird119/voltdb,simonzhangsm/voltdb