Re: [PATCH] kobject_uevent: add uevent_helper exist check

[Greg KH]

On Sun, Apr 06, 2025 at 02:19:15PM +0800, zhoumin wrote:
> Hi Andrew,
> 
> Thank you for your feedback.
> 
> > Is there any measurable reduction in boot time?
> 
> This depends on the number of uevent and the performance of the device. 
> In fact, I found this issue during a project to optomize boot time,
> and on my embedded device, it can be optimized by at least 2 seconds.

So you are spending 2 seconds in failing to lookup the uevent helper
path?  That feels really wrong, how long does your boot take overall?
What % is 2 seconds?

thanks,

greg k-h