Re: [storage-discuss] srp targe driver parameters
No, there's no way to change those parameters at this time. What problem are you trying to solve? Giovanni wrote: Hello, via mdb is possible to verofy srp target parameters. target port: ff0945be9978 srq handle: ff0946a4da78 current srq size: 4095 max srq size: 4095 iu pool: ff09480c6000 profile send qdepth: 128 profile rmda read qdepth: 16 profile send msg size: 4160 profile rmda xfer size: 65536 profile opcap mask: --x-x-xx How is possbile to modify the send qdepth, read qdepth and msg size ? Is there a config file or a command toold and which params need to be used ? Thanks ___ storage-discuss mailing list storage-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/storage-discuss
Re: [storage-discuss] srp targe driver parameters
Hi, I am trying to get max performance in sequential reads. I did a lot of tests from a client (VSphere 4.1 + MLX OFED) tuning the parameters to get the max throughput from within a single VM. I ended up getting IOmeter close to 2970 MB/s read (8MB requential block 100% read), but the standard throughput - as per people at MLX, should be 3200 MB/s (40 Gbit - 20% protocol overhead). I am wondering where to further look. On the client side the parameters I can work are: ib_srp (srp client kernel module): srp_cmd_per_lun, srp_sg_tablesize, srp_can_queue VMware Level: Disk.SchedQuantum, Disk.SchedQControlSeqReq, Disk.UserDeviceReset,Disk.SchedQControlVMSwitches, RequOutstanding -- This message posted from opensolaris.org ___ storage-discuss mailing list storage-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/storage-discuss
Re: [storage-discuss] srp targe driver parameters
As far as I can understand the current SRP target configuration seems to have a queue of 16 outstanding commands per target, is this correct ? After that a QFULL should be sent. While at adapter port level the queue is 128, right ? If am am not missing the point the target will be issuing a QFULL condition if overall queue commands 128 or single target LUN commands 16, right ? -- This message posted from opensolaris.org ___ storage-discuss mailing list storage-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/storage-discuss
