Messages in this thread | | | Date | Mon, 19 Mar 2007 17:06:38 +0100 | From | Helge Hafting <> | Subject | Re: is RSDL an "unfair" scheduler too? |
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Avi Kivity wrote: > > A fairly contrived example, but I see your point. Of course any > system can be broken. I think that user-level scheduling is good for > real multi user systems, where 'user' means a person, not an > artificial entity. It's also good for a multi application server, > where typically each service runs (or can be made to run) as a > separate user. For a not so contrived example, look at email delivery. Some mailservers do all work as root (or some fixed email user)
Some servers will switch to the UID of the user receiving the message, limiting the damage in case of buffer overflow etc. A fair amount of work is then done as that user - running the message through virus/spam-checks and then perhaps procmail.
Helge Hafting - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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