Hello, Vivek. On Fri, Jun 26, 2015 at 12:01:42PM -0400, Vivek Goyal wrote: > - Previously throttling policy was calculating number of IOs in terms of > number of bios while CFQ was calculating it in terms of number of > requests. I think this will be a behavior change now? IIUC, now even > throttling policy will report number of requests and number of bios.
Yes, it'd be. I'll mention it in the description. The thing is this has never been documented or explained properly. The only thing userland saw would be the counts deviating over time. I don't think putting them on the same measure is gonna break anything. > - Looks like completion and stat is now lined to request. I am wondering > what will happen to bio based targets. One can put a throttling policy > on any of the stacked dm devices. I suspect we will be broken there? Dang, I forgot about bio based drivers. I don't care whether it counts bios or requests. The only thing I want is counting the same thing once instead of separately in subtly different ways. I'll converge them to bios. > - Can you please also update the blkio-controller.txt. Specifically > blkio.throttle.io_serviced. Sure, will do. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
