Hi Li, Just a few notes: we did not port L4Linux ability to directly use hardware resources like interrupts and I/O memory. Instead we use L4Linux in its para-virtualized form only. So within L4Android you can use virtual interrupts delivered by other software components only. The affinity setting seems to work as expected from what you have described. Linux' proc filesystem's view is probably not synchronized with the interrupt settings of the L4 kernel correctly. Maybe it always shows CPU zero regardless of the actual IRQ state. Have you ever tried to run L4Linux/L4Android in its original version on top of Fiasco.OC/L4Re? Does that version delivers correct values via the proc filesystem? Lastly, I have to admit that we do not use or test this old port of L4Android (2.3) anymore.
Regards Stefan On 11/09/2015 01:32 PM, li94575 wrote: > Hi, everyone > I want to move some interrupts to specified cpu core, but I encountered some > difficulties. > When I try to write to "/proc/irq/*/smp_affinity" with cpu bitmask, it will > call the interface l4lx_irq_dev_set_affinity(), which locates in > "pots-foc/src/lib/l4lx/l4lx_irq.cc". And I can see the printed log "switched > irq * to cpu* ". However, in fact, it doesnot work, the irq is still staying > on previous cpu core ( seeing "/proc/interrupts") . > Please tell me how can I do, thank you so much! > > > > ------------------------------------------------------------------------------ > Presto, an open source distributed SQL query engine for big data, initially > developed by Facebook, enables you to easily query your data on Hadoop in a > more interactive manner. Teradata is also now providing full enterprise > support for Presto. Download a free open source copy now. > http://pubads.g.doubleclick.net/gampad/clk?id=250295911&iu=/4140 > > > > _______________________________________________ > genode-main mailing list > genode-main@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/genode-main > -- Stefan Kalkowski Genode Labs http://www.genode-labs.com/ ยท http://genode.org/ ------------------------------------------------------------------------------ Presto, an open source distributed SQL query engine for big data, initially developed by Facebook, enables you to easily query your data on Hadoop in a more interactive manner. Teradata is also now providing full enterprise support for Presto. Download a free open source copy now. http://pubads.g.doubleclick.net/gampad/clk?id=250295911&iu=/4140 _______________________________________________ genode-main mailing list genode-main@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/genode-main
