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- Xref: sparky comp.os.os2.programmer:4568 comp.os.os2.misc:28617
- Path: sparky!uunet!utcsri!bonnie.concordia.ca!daily-planet.concordia.ca!patrice
- From: patrice@cs.concordia.ca (SCATTOLIN patrice)
- Newsgroups: comp.os.os2.programmer,comp.os.os2.misc
- Subject: Hardware interrupt speed, how many interrupts per secs.
- Message-ID: <4824@daily-planet.concordia.ca>
- Date: 29 Aug 92 22:11:19 GMT
- Sender: usenet@daily-planet.concordia.ca
- Followup-To: comp.os.os2.programmer
- Organization: Computer Science, Concordia University, Montreal, Quebec
- Lines: 26
-
-
- If I write a hardware interrupt driver for OS2 how many interrupt can I
- expect being able to service. How much more overhead does OS2 impose
- on hardware interrups? Finally what kind of performance degradation
- will I see for may hardware interrupt handlers moving them from DOS to
- OS2?
-
- I have heard a limit of 1000 interrupts being the maximum? Is is this for
- virtual interrupts (for DOS program running on a virtual DOS box or does
- this applies as well to OS2 harware interrupt handelers)? Is there an
- IBM statement on this somewhere?
-
-
- Thanks, I have to convice superiors that going to OS2 should not cause a
- serious performance problem. Right now the DOS version handles somewhere
- between 4000 and 5000 interrupts per second and the must still do it
- under OS2.
-
-
-
-
- --
- Patrice Scattolin
- patrice@cs.concordia.ca
- Concordia University Montreal, Canada
- "I am so far north that Santa lives two blocks from me"
-