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precise time event generation. This greatly improves granularity of callouts which are not anymore constrained to wait next tick to be scheduled. - Extend the callout KPI introducing a set of callout_reset_sbt* functions, which take a sbintime_t as timeout argument. The new KPI also offers a way for consumers to specify precision tolerance they allow, so that callout can coalesce events and reduce number of interrupts as well as potentially avoid scheduling a SWI thread. - Introduce support for dispatching callouts directly from hardware interrupt context, specifying an additional flag. This feature should be used carefully, as long as interrupt context has some limitations (e.g. no sleeping locks can be held). - Enhance mechanisms to gather informations about callwheel, introducing a new sysctl to obtain stats. This change breaks the KBI. struct callout fields has been changed, in particular 'int ticks' (4 bytes) has been replaced with 'sbintime_t' (8 bytes) and another 'sbintime_t' field was added for precision. Together with: mav Reviewed by: attilio, bde, luigi, phk Sponsored by: Google Summer of Code 2012, iXsystems inc. Tested by: flo (amd64, sparc64), marius (sparc64), ian (arm), markj (amd64), mav, Fabian Keil |
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.. | ||
files | ||
files.amd64 | ||
files.arm | ||
files.i386 | ||
files.ia64 | ||
files.mips | ||
files.pc98 | ||
files.powerpc | ||
files.sparc64 | ||
kern.mk | ||
kern.post.mk | ||
kern.pre.mk | ||
kmod_syms.awk | ||
kmod.mk | ||
ldscript.amd64 | ||
ldscript.arm | ||
ldscript.i386 | ||
ldscript.ia64 | ||
ldscript.mips | ||
ldscript.mips.cfe | ||
ldscript.mips.mips64 | ||
ldscript.mips.octeon1 | ||
ldscript.powerpc | ||
ldscript.powerpc64 | ||
ldscript.sparc64 | ||
Makefile.amd64 | ||
Makefile.arm | ||
Makefile.i386 | ||
Makefile.ia64 | ||
Makefile.mips | ||
Makefile.pc98 | ||
Makefile.powerpc | ||
Makefile.sparc64 | ||
makeLINT.mk | ||
makeLINT.sed | ||
newvers.sh | ||
NOTES | ||
options | ||
options.amd64 | ||
options.arm | ||
options.i386 | ||
options.ia64 | ||
options.mips | ||
options.pc98 | ||
options.powerpc | ||
options.sparc64 | ||
systags.sh | ||
WITHOUT_SOURCELESS | ||
WITHOUT_SOURCELESS_HOST | ||
WITHOUT_SOURCELESS_UCODE |