2. The method according to claim 1 , further comprising: recognizing code clusters from the result of computer system performance according to a predetermined metric.
2. The method according to claim 1 , further comprising: recognizing code clusters from the result of computer system performance according to a predetermined metric. 3. The method according to claim 2 , wherein the predetermined metric is a tick percentage and the significant code clusters are hotspots, wherein the tick percentage is a rate of the ticks of a respective code cluster to a sum of the ticks, and the ticks are executing times of the respective code cluster counted by a counter.