LTTng CLUST: A System-Wide Unified CPU and GPU Tracing Tool for OpenCL Applications

Table 5

Overhead of using CLUST and CLUST + LTTng.

Width; (pixel)	Height; (pixel)	Preload; overhead; (ns/iter.)	CLUST; overhead; (ns/iter.)	CLUST + LTTng; overhead; (ns/iter.)
1	1	1201	15692	23640
10	1	520	16700	23082
10	10	859	14727	23588
10	100	1131	17883	23171
100	100	2939	18303	27976
1000	100	471	18032	29605
1280	720	139	25090	36619
1920	1080	681	25493	45298

Sample size = 1000; loop size = 100.