Re: May I do some contributions for iSCSI multiqueue
On 06/25/2015 11:31 PM, LSZhu wrote: I have been working for iSCSI in SUSE for half a year, I have some basic knowledge of iSCSI. I did some debug and performance analyze work before.I am quite interested in iSCSI-mq, I am not a expert here, but may I do some contributions for iSCSI-mq? If you need me in somewhere, please let me know. In my view, there seems such works need to be done: (1) open-iscsi should simulate a multi-queue block device on the initiator side, I mean, /dev/sdc, sdd which simulated by open-iscsi should be multi-queue, just like we want a multi-queue hardware device as a backstore. (2) I/O scheduler is needed in the block layer for multi-queue, for the simulated device mentioned above. (3) open-iscsi should establish more than one connections to the target in a session, and a I/O scheduler is needed here. (4) some performance improve work like how to manage multi-queue threads on multiple CPU cores, how to reduce latency, how to create a better pipeline. I have heard that on the target LIO side, multi-queue work is done. If I am wrong somewhere, please tell me, I would appreciate for that. I know you have did a lot of work for multi-queue, so if you need me somewhere, or I can help in some work, please let me know. Hello Zhu, The most recent discussion about this topic I am aware of can be found at http://thread.gmane.org/gmane.linux.scsi/98199. Please note that I'm not an iSCSI expert. Bart. -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to open-iscsi+unsubscr...@googlegroups.com. To post to this group, send email to open-iscsi@googlegroups.com. Visit this group at http://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/d/optout.
Re: May I do some contributions for iSCSI multiqueue
Hi, This is my new account based on my SUSE email, I think I should use this in future. Thanks Zhu Lingshan 在 2015年6月26日星期五 UTC+8下午2:31:26,LSZhu写道: > > Hi, > I have been working for iSCSI in SUSE for half a year, I have some basic > knowledge of iSCSI. I did some debug and performance analyze work before.I > am quite interested in iSCSI-mq, I am not a expert here, but may I do some > contributions for iSCSI-mq? If you need me in somewhere, please let me know. > > In my view, there seems such works need to be done: > > (1) open-iscsi should simulate a multi-queue block device on the initiator > side, I mean, /dev/sdc, sdd which simulated by open-iscsi should be > multi-queue, just like we want a multi-queue hardware device as a backstore. > (2) I/O scheduler is needed in the block layer for multi-queue, for the > simulated device mentioned above. > (3) open-iscsi should establish more than one connections to the target in > a session, and a I/O scheduler is needed here. > (4) some performance improve work like how to manage multi-queue threads > on multiple CPU cores, how to reduce latency, how to create a better > pipeline. > > I have heard that on the target LIO side, multi-queue work is done. > If I am wrong somewhere, please tell me, I would appreciate for that. > > I know you have did a lot of work for multi-queue, so if you need me > somewhere, or I can help in some work, please let me know. > > Thanks > BR > Zhu Lingshan > > -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to open-iscsi+unsubscr...@googlegroups.com. To post to this group, send email to open-iscsi@googlegroups.com. Visit this group at http://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/d/optout.
Re: May I do some contributions for iSCSI multiqueue
Hi, This is my new account based on my SUSE email, I would use this one in future. Thanks BR Zhu Lingshan 在 2015年6月26日星期五 UTC+8下午2:31:26,LSZhu写道: > > Hi, > I have been working for iSCSI in SUSE for half a year, I have some basic > knowledge of iSCSI. I did some debug and performance analyze work before.I > am quite interested in iSCSI-mq, I am not a expert here, but may I do some > contributions for iSCSI-mq? If you need me in somewhere, please let me know. > > In my view, there seems such works need to be done: > > (1) open-iscsi should simulate a multi-queue block device on the initiator > side, I mean, /dev/sdc, sdd which simulated by open-iscsi should be > multi-queue, just like we want a multi-queue hardware device as a backstore. > (2) I/O scheduler is needed in the block layer for multi-queue, for the > simulated device mentioned above. > (3) open-iscsi should establish more than one connections to the target in > a session, and a I/O scheduler is needed here. > (4) some performance improve work like how to manage multi-queue threads > on multiple CPU cores, how to reduce latency, how to create a better > pipeline. > > I have heard that on the target LIO side, multi-queue work is done. > If I am wrong somewhere, please tell me, I would appreciate for that. > > I know you have did a lot of work for multi-queue, so if you need me > somewhere, or I can help in some work, please let me know. > > Thanks > BR > Zhu Lingshan > > -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to open-iscsi+unsubscr...@googlegroups.com. To post to this group, send email to open-iscsi@googlegroups.com. Visit this group at http://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/d/optout.