Is there a way to keep disk caches when hibernating Linux? I understand and agree that dropping them is the best option all-around. But my system is unresponsive after resume and I would like to give a try to keeping that data.
Of course, both hibernating and resuming will be slower, since disk cache data will have to be written to swap and restored. And, of course, I will need more swap space than I do now. But still, I've been looking all over the web and I haven't found any way to set things up like that.
I use pm-utils with uswsusp as backend, but I'm open to suggestions.