Hi, Dan Thanks for the explanation!
在 2020年3月29日星期日 UTC+8上午3:15:52，Dan Willemsen写道： > > So that time was mostly spent initializing the find emulator: > > verbose: *kati*: init find emulator time: 1311.781312 > > What that's doing is walking through your source tree and building up a > data structure to more efficiently (normally!) run `find` commands. This > can become very slow if you've added a symlink into your source tree > pointing to elsewhere on your filesystem (or a network filesystem). We've > also had reports that this can get very slow when you have a lot of output > trees under your source tree (being discussed in > https://github.com/google/kati/issues/184), but 20 minutes seems > excessive for that -- it claims that there are ~3M nodes in the cache: > Having a lot of output trees is my case. I build for following products under the same AOSP tree. beagle_x15/ db845c/ generic/ generic_arm64/ hikey/ hikey960/ vsoc_arm64 I thought that would help to save time on the host tools/java files building... verbose: *kati*: 3071468 find nodes > > One of my AOSP trees (after removing out/) is closer to 1M nodes (~2s), > and after a hikey960 build it has ~1.5M nodes (3.4s). > I checked log for another build which was done after out directory removed, the time is OK, Then what's your suggestion here: 1. use separate aosp tree for less product, like 2 or 3, my has 7 and cts, vts in the host out directory 2. I have not checked the details, and not verified it yet, do you think specifying the OUT out of the AOSP tree helps? still build multiply projects in the same out put directory. 3. I do not have data yet, just want to ask you here first, do you think build multiple products with the same output directory helps to save some time? maybe my thought that it saves time on building the host binaries and java objects was wrong:( Thanks, Yongqin Liu > On Sat, Mar 28, 2020 at 8:36 AM Yongqin Liu <[email protected] > <javascript:>> wrote: > >> Hi, All >> >> Anyone knows what's the problem with the step of "including >> out/soong/Android-hikey960.mk ..." >> and how to work around this problem? >> >> it took about 20 minutes to include during the build, which is almost >> half of the entire build time. >> >> The build was an incremental build after did repo sync. >> >> here is some information from the out/verbose.log.gz >> >> out/soong/make_vars-hikey960.mk was modified, regenerating... >> verbose: *kati*: regen check time: 0.079827 >> verbose: *kati*: Stack size: 8376320 bytes >> [287/287] initializing build system ... >> verbose: *kati*: slow included makefiles (4.618866): build/make/core/ >> base_rules.mk >> verbose: *kati*: slow included makefiles (4.618982): build/make/core/ >> soong_cc_prebuilt.mk >> verbose: *kati*: slow included makefiles (4.604702): build/make/core/ >> base_rules.mk >> verbose: *kati*: slow included makefiles (4.605250): build/make/core/ >> soong_cc_prebuilt.mk >> verbose: *kati*: slow included makefiles (43.432355): >> out/soong/Android-hikey960.mk >> [288/491] including out/soong/Android-hikey960.mk ... >> verbose: *kati*: 3071468 find nodes >> verbose: *kati*: init find emulator time: 1311.781312 >> verbose: *kati*: slow included makefiles (1311.898633): art/build/ >> Android.cpplint.mk >> verbose: *kati*: slow included makefiles (1312.676836): art/Android.mk >> [289/491] including art/Android.mk ... >> >> >> For details, please check the attached build log. >> >> >> Thanks in advance! >> >> >> Best Regards, >> Yongqin Liu >> >> -- >> -- >> You received this message because you are subscribed to the "Android >> Building" mailing list. >> To post to this group, send email to [email protected] >> <javascript:> >> To unsubscribe from this group, send email to >> [email protected] <javascript:> >> For more options, visit this group at >> http://groups.google.com/group/android-building?hl=en >> >> --- >> You received this message because you are subscribed to the Google Groups >> "Android Building" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/android-building/eebd86b2-83c0-460e-a26d-6cd5af31fb20%40googlegroups.com >> >> <https://groups.google.com/d/msgid/android-building/eebd86b2-83c0-460e-a26d-6cd5af31fb20%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- -- You received this message because you are subscribed to the "Android Building" mailing list. 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