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Graphics Interchange Format  |  1997-06-26  |  84KB  |  562x457  |  4-bit (16 colors)

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OCR: TABLE 1 Execution time comparison. Description Intel MCS 251 Philips XA Philips XA XA (16MHz) XA (30MHz) (@016MHZ) (@16MHZ) (@)30MHz) times faster than times faster than MCS-251 /AT- MCS-251 (16MIIz) Kernel Internals (Execution Times): 1. Interrupt Disable 21.6us 16.9/48 9.0gs 1.28 2,40 Scheduling: 2. No Context Switch 10.0gs 4.5/5 1.19 2.22 3. With Context Switch 34.6j15 18.828 10.028 1.85 3.46 4. Context Switch 22.8ps 8.1/45 4.3/4$ 2.80 5.25 5. Interrupt Response 31.8us 21.9AS 11.7M5 1.45 2.72 Internipt Recovery: 6. No Context Switch E2.0gs 11.609 6.25 1.04 7. With Context Switch 39.3gls 18.1us 9.7Hs 2.17 Process System Tick (32 Tasks): 8. Minimum 170.808 88.9MAS 47.4MS 1.92 3.60 9. Maximum 410.8us 170.9g !! 91.225 2.40 4.51 Kernel Services (Execution Times): 10. Delay a Task 40.4grs 26.3gs 14.0gs 1.54 Wait for semaphore: 11 Minimum 5.0gs 2.7/2$ 2.15 4.03 12. Maximum 73.6gs 38.1us 20.3us 1.93 3.62 Signal Semaphore: 13. Minimum 7.90 4.73 2.5/48 1.68 3.15 14. Maximum 46.9us 30.6us 16.3A5 1.53 2.87 Wait for message from mailbox: IŞ. Minimum 10.8pış 5.015 2.7gas 2.15 4.03 16. Maximum 73.6us 38.1us 20.3gs 1.93 3.62 Send message to mailbox: 17. Minimum 7.9mis 4.7ms 1.68 3.15 18. MaximumE 46.9grs 30.6us 16.3gs 1.53 2.87

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