On Sat, 26 Oct 2024 07:58:39 +0800 Dust Li <dust.li@xxxxxxxxxxxxxxxxx> wrote: > >For some reason include/linux/wait.h does not offer a top level wrapper > >macro for wait_event with interruptible, exclusive and timeout. I did > >not spend too many cycles on thinking if that is even a combination that > >makes sense (on the quick I don't see why not) and conversely I > >refrained from making an attempt to accomplish the interruptible, > >exclusive and timeout combo by using the abstraction-wise lower > >level __wait_event interface. > > > >To alleviate the tx performance bottleneck and the CPU overhead due to > >the spinlock contention, let us increase SMC_WR_BUF_CNT to 256. > > Hi, > > Have you tested other values, such as 64? In our internal version, we > have used 64 for some time. Yes we have, but I'm not sure the data is still to be found. Let me do some digging. > > Increasing this to 256 will require a 36K continuous physical memory > allocation in smc_wr_alloc_link_mem(). Based on my experience, this may > fail on servers that have been running for a long time and have > fragmented memory. Good point! It is possible that I did not give sufficient thought to this aspect. Regards, Halil
