Research Article
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 |
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Sample size = 1000; loop size = 100.
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