Ask / Submit

Does SailfishX use full cpu/gpu power? (spoiler: no)

asked 2017-10-16 17:16:25 +0300

objectifnul gravatar image

updated 2017-10-16 17:46:18 +0300

If I compare the performance of my Xperia X before and after SailfishX (official) flashing, I suspect it's no longer using the full power of its six-core cpu. Is there a way to check that?

edit retag flag offensive close delete

3 Answers

Sort by » oldest newest most voted

answered 2017-10-16 17:18:19 +0300

Giacomo Di Giacomo gravatar image

updated 2017-10-17 21:30:47 +0300

Currently it does not. Antutu scores about 75k on Xperia X with Android 7.1 and about 45k on SailfishOS with Alien Dalvik.

EDIT: Of course it does not. Alien Dalvik runs Android 4.4.4 and therefore uses the Dalvik JIT runtime, while Android 7.1 uses the ART runtime with pre-compiled executables, hence the gain in speed.

edit flag offensive delete publish link more



Same score for me :-( Thx!

objectifnul ( 2017-10-16 17:42:39 +0300 )edit

what does that mean? Can you put it into relation to the J1 or Jolla C maybe?

fooza ( 2017-10-17 20:04:16 +0300 )edit

I just realized that Alien Dalvik is, as the name says, Dalvik, while Android 7.1 runs ART. This is for sure the reason for the difference in performance.

Giacomo Di Giacomo ( 2017-10-17 21:28:52 +0300 )edit

answered 2017-10-16 18:20:35 +0300

bomo gravatar image

updated 2017-10-16 18:20:51 +0300

I guess that is related to a known issue mentioned in the release notes:

Even though all CPU cores get eventually enabled, foreground apps do not always run on the big cores

In Alien Dalvik that may even be completely different story.

edit flag offensive delete publish link more


You mean even worse, I guess.

objectifnul ( 2017-10-16 18:26:21 +0300 )edit

answered 2017-10-16 21:53:18 +0300

XFish gravatar image

I notice that sometimes when the Xperia CPU Core 1 gets overloaded 100% persistent, it brings the entire phone to a crawl.

edit flag offensive delete publish link more
Login/Signup to Answer

Question tools



Asked: 2017-10-16 17:16:25 +0300

Seen: 1,196 times

Last updated: Oct 17 '17