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

asked 2017-10-16 17:16:25 +0200

objectifnul gravatar image

updated 2017-10-16 17:46:18 +0200

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?

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answered 2017-10-16 17:18:19 +0200

Giacomo Di Giacomo gravatar image

updated 2017-10-17 21:30:47 +0200

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.

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2

Same score for me :-( Thx!

objectifnul ( 2017-10-16 17:42:39 +0200 )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 +0200 )edit
1

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 +0200 )edit
7

answered 2017-10-16 18:20:35 +0200

bomo gravatar image

updated 2017-10-16 18:20:51 +0200

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.

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You mean even worse, I guess.

objectifnul ( 2017-10-16 18:26:21 +0200 )edit
4

answered 2017-10-16 21:53:18 +0200

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.

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Asked: 2017-10-16 17:16:25 +0200

Seen: 1,178 times

Last updated: Oct 17 '17