Hello Community,
I am running QNX 6.5 on a normal consumer PC. Unfortunately, the performance of the HD is not so good, so I had a look at the arguments used to start the ahci driver. It looks like this.
“devb-ahci blk vnode=20000,cache=150m,noatime,delwri=0,commit=medium,automount=hd0t79:/:qnx4:unbusy”
Is there a way to change the arguments of the driver on a test basis? What settings would you recommend and what would be the workflow for customizing the arguments.
Many thanks
What do you mean when you say performance is ‘not so good’?
Are you using an SSD or a hard drive?
How much performance do you need?
Tim
If you are comparing the performance to a Linux or Windows system, the difference is well known. It’s one of the few issues with QNX that is inferior to other monolitic kernel OS’s. It is doubtful that changing the disk parameters will help much, but if you want to, there is a convenient way,
The OS works fine without a hard drive. You can slay the driver and restart the driver. You should be able to find the driver under /proc in the filesystem that is part of the boot image. Once you restart the driver you will need to mount its partitions and then mount one of its partitions as root.
Thank you for explanation