>>Now, the kernel can decrease the CPU cycle usages for network I/O processing because of RDMA enabled (right?). Yes, kernel should have comparatively free cycles when using RDMA over TCP >>does it means host can provide more CPU for other processing, such as Disk I/O ? This can be subjective, bcos let's say u have an IO process which takes 10 mins over TCP then when using RDMA it might be 3 mins as your CPU cycles are less used by RDMA but if ur application process which provides the RDMA functionality might have processing cycles as well, which might use CPU cycles as well, example client or fuse plugins on the host getting it ? -- Deepak > On Mar 23, 2017, at 11:10 PM, Hung-Wei Chiu (邱宏瑋) <hwchiu@xxxxxxxxxxxxxx> wrote: > > Now, the kernel can decrease the CPU cycle usages for network I/O processing because of RDMA enabled (right?). > does it means host can provide more CPU for other processing, such as Disk I/O ? ----------------------------------------------------------------------------------- This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. -----------------------------------------------------------------------------------
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