[Nbd] NBD Super Size io operations

[Rohan Sharma <rickyrohan14@...58...>]

My last message didn’t show up properly due to some formatting errors.

So, I am sending it again

 

I am using nbd over high latency network (100 ms ).

Currently maximum size of nbd io operation(amount of data fetched in one request)

I can achieve is 130kb and it gives very poor disk performance.

I tried recompiling nbd driver code so as to increase max_sector_kb property of disk queue.

I added following two lines to nbd_init function

              blk_queue_max_hw_sectors(disk->queue, 65536);
              disk->queue->limits.max_sectors = 4096;

But these modifications changed nothing.

Do you have any idea what can I do to increase size of nbd io operations?

I would like it to go as high as 4MB.

 

Thanks