Checking sstate mirror taking forever

[bpb]

"Checking sstate mirror object availability" takes a very long time during "petalinux-build".  Is there any way to mitigate this?

[shabbirk]

Hi

Since sstate mirror check is part of petalinux-build, you can only speed up this process if you increase parallel threads in petalinux-config ---> Yocto settings ---> Select No of threads here as max 8

Also, it depends on host machine on which you are building, if its fast enough, then build will also be fast

Best Regards

Shabbir

[bpb]

There is decent CPU utilization by default so I would guess parallel build is enabled.  I tried changing this manually, as suggested, and there doesn't seem to be a difference.

I am seeing ~20 minutes to "petalinux-build" right after a previous "petalinux-build".  4 cores @ 4.4GHz (HTT disabled) Ubuntu 16.04 under VMware Workstation.  No change in anything, just a rebuild.  It seems to spend most of the time "Checking sstate mirror".

I've gone through compiling the kernel on this VM before, and a nop rebuild doesn't take much time.  I suspect the slowdown is related to the Yocto/Bitbake tooling?

[phani.kara]

I can confirm that I have the same problem as well. Disconnecting network on the VirtualBox VM used to make it proceed further but even this step does not help now. waiting for 1 hour now with no hope in sight. Rebooting host (and VM) has no effect.

[bpb]

This appears to be fixed in Petalinux 2017.2 - at least for a simple "Create Block Design" -> "Add Zynq" -> "Generate Bitstream" -> "petalinux-create ..." -> "petalinux-build"

[jothiadithya]

The issue exists with petalinux 2017.2. It takes 45 to 55 mints every time. How to reduce the time?

[mascot02]

me too,  it take  about 1 hour  just to check sstate mirror  object , and the check occurred  two times;

[vacajk]

I am using the PetaLinux 2017.2 in the virtual machine of CentOS 7.3.

I found a way to reduce the time of "Checking sstate mirror object availability".

Firstly, you should download the sstate-cache from the webset:

https://www.xilinx.com/support/download/index.html/content/xilinx/en/downloadNav/embedded-design-tools.html

And set the local sstate-cache directions for arm and downloads.

Secondly, before you using the "petalinux-build". You should disconnect the ethernet link of the virtual machine.

Then you can speed up the process of the Checking sstate mirror....

[mascot02]

thanks ,it make useful for me ;

[eatnafou]

This is helpful and it does speed things up. It was showing hours during that stage of the build until I disconnected from the network. I really don't want to have to disconnect the network everytime I want to do a build. Is there any other way beside disconnecting the network? There has to be.

[mrzhang_]

petalinux-config->

       YOCTO  setting ->

                           Enbale  sstate cache  internet feeds. (Don't  select this option )

Then, I  need not disconnect my internet, it can feed up compile speed.