frame.cpuDuration = lastCpuTime - frame.cpuStart;
frame.vsizeDuration = lastVsizeUsage - frame.vsizeStart;
frame.rssDuration = lastRssUsage - frame.rssStart;
frame.cpuDuration = lastCpuTime - frame.cpuStart;
frame.vsizeDuration = lastVsizeUsage - frame.vsizeStart;
frame.rssDuration = lastRssUsage - frame.rssStart;