http://www.tested.com/tech/457440-theoretical-vs-actual-bandwidth-pci-express-and-thunderbolt/
PCIe 1.0: 2.5GT/s, 250MB/s per lane
PCIe 2.0: 5GT/s, 500MB/s per lane
PCIe 3.0: 8GT/s, 985MB/s per lane
http://www.tested.com/tech/457440-theoretical-vs-actual-bandwidth-pci-express-and-thunderbolt/
PCIe 1.0: 2.5GT/s, 250MB/s per lane
PCIe 2.0: 5GT/s, 500MB/s per lane
PCIe 3.0: 8GT/s, 985MB/s per lane
apiVersion: extensions/v1beta1 kind: Deployment metadata: name: nvmeof-nginx spec: #replicas: 2 template: metadata: labels: run: nvmeof-nginx spec: volumes: - name: www nvmef: # Address of the iSCSI target portal targetPortal: "40.10.10.114:1023" # NQN of the portal nqn: "nqn.testiqn" # LUN we want to mount ns: 1 # transport transport: "rdma" # Filesystem on the LUN fsType: ext4 readOnly: false containers: - name: my-nginx image: nginx ports: - name: web containerPort: 80 protocol: TCP volumeMounts: # 'name' must match the volume name below. - name: www # Where to mount he volume. mountPath: "/usr/share/nginx/html/"
Host(/dev/nvme0n1)
259,0 3 2 0.001517626 2767 Q R 713574320 + 8 [fio]
259,0 3 3 0.001519131 2767 G R 713574320 + 8 [fio]
259,0 3 4 0.001522356 2767 U N [fio] 1
259,0 3 5 0.001522797 2767 I RS 713574320 + 8 [fio]
259,0 3 6 0.001524471 2767 D RS 713574320 + 8 [fio]
259,0 4 1 0.001737904 0 C RS 713574320 + 8 [0]
Target(/dev/nvme0n1)
259,0 2 1 0.001476259 1975 Q R 713574320 + 8 [kworker/u17:2]
259,0 2 2 0.001477725 1975 G R 713574320 + 8 [kworker/u17:2]
259,0 2 3 0.001481089 1975 D RS 713574320 + 8 [kworker/u17:2]
259,0 2 4 0.001535899 0 C RS 713574320 + 8 [0]
Q – queued:
generic_make_request_checks: trace_block_bio_queue(q, bio)
G – get request:
blk_mq_map_request: trace_block_getrq(q, bio, op)
U:
blk_mq_insert_requests: trace_block_unplug(q, depth, !from_schedule)
I – inserted:
__blk_mq_insert_req_list: trace_block_rq_insert(hctx->queue, rq)
D – issued:
blk_mq_start_request: trace_block_rq_issue(q, rq)
C – complete:
blk_update_request: trace_block_rq_complete(req->q, req, nr_bytes)