[Bug translator/6899] New: offer option to avoid disabling interrupts during more probe handlers

["fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

Currently, most of our probe handlers run with preemption/interrupts off,
since this avoids reentrancy that is not well handled on some platforms.

We should consider offering an option to skip the interrupt-disabling
parts of the probe handlers.  We would have to rely on proper reentrancy
preventection (and consequent skipped-probe counting) to work correctly.
But in exchange, system performance and responsivity should improve.

Perhaps the translator can make this decision automatically, based
upon analysis of the entire script.

-- 
           Summary: offer option to avoid disabling interrupts during more
                    probe handlers
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: fche at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=6899

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