From mboxrd@z Thu Jan 1 00:00:00 1970 From: hch@infradead.org (hch@infradead.org) Date: Wed, 11 Jan 2017 08:12:38 -0800 Subject: [LSF/MM TOPIC][LSF/MM ATTEND] NAPI polling for block drivers In-Reply-To: <1484150893.2619.1.camel@sandisk.com> References: <20170111134312.GH6286@linux-x5ow.site> <1484150893.2619.1.camel@sandisk.com> Message-ID: <20170111161238.GA18881@infradead.org> On Wed, Jan 11, 2017@04:08:31PM +0000, Bart Van Assche wrote: > A typical Ethernet network adapter delays the generation of an interrupt > after it has received a packet. A typical block device or HBA does not delay > the generation of an interrupt that reports an I/O completion. NVMe allows for configurable interrupt coalescing, as do a few modern SCSI HBAs.