On Mon, Dec 18, 2017 at 6:20 AM, <uzair.jal...@samsung.com> wrote: > >* new functionality (both internal and new language additions); > > Is it possible to find out what new functionality has been added?( If > yes please can you let me know where to check for new features added ?) >
For new language features, you could watch https://github.com/tc39/proposals to track TC39 proposal status. New V8 developments are sometimes called out on the V8 blog, but the only way to get a complete picture is to follow the git commit log. > > Thanks > > On Thursday, December 14, 2017 at 3:24:36 PM UTC+5:30, Jakob Gruber wrote: > >> On Thu, Dec 14, 2017 at 10:39 AM, <uzair....@samsung.com> wrote: >> >>> On Thursday, December 14, 2017 at 2:44:15 PM UTC+5:30, Ben Noordhuis >>> wrote: >>>> >>>> On Thu, Dec 14, 2017 at 7:22 AM, <uzair....@samsung.com> wrote: >>>> > 1) How is snapshot_blob.bin generated at compile time ? (If possible >>>> where >>>> > in chromium code ) >>>> >>>> Look for a file called mksnapshot.cc in v8/src/snapshot. >>>> >>>> > 2) Is it possible to reduce the size of snapshot_blob.bin ? (if yes >>>> where in >>>> > chromium code do we do it and will it have any performance regression >>>> ?) >>>> >>>> You could disable internationalization (v8_enable_i18n_support=0) but >>>> that's about it. It won't affect performance but the Intl JS object >>>> will have only bare-bones functionality. >>>> >>>> You can disable the snapshot entirely (v8_use_snapshot=0) but that >>>> does have a performance impact because it shifts the cost of >>>> construction to Context::New(). Expect that function to slow down by >>>> 5-10x. >>>> >>> >>> Hi Ben, >>> >>> Thanks for the reply :) >>> >>> We disabled v8_enable_i18n_support and size of snapshot_blob.bin has >>> reduced by 20KB. >>> >>> But is there any way to find out the reason for increase ? >>> >> >> There's a bunch of reasons, but mainly: >> >> * new functionality (both internal and new language additions); >> * and the increasing use of CodeStubAssembler >> <https://v8project.blogspot.de/2017/11/csa.html> to write shipped code >> (vs. implementing builtins >> as self-hosted JS, shipping the source files and compiling at runtime). >> >> > Our current aim is to reduce the size of binary. >> >> I suppose this is the binary in decompressed form, and not something like >> an APK? It'd theoretically >> be possible to support loading from compressed snapshot blobs (for >> roughly 1MB savings), but this >> is not implemented currently. >> > -- > -- > v8-users mailing list > v8-users@googlegroups.com > http://groups.google.com/group/v8-users > --- > You received this message because you are subscribed to the Google Groups > "v8-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to v8-users+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > Jakob Gruber Software Engineer jgru...@google.com Google Germany GmbH Erika-Mann-Straße 33 80636 München Geschäftsführer: Paul Manicle, Halimah DeLaine Prado Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg Diese E-Mail ist vertraulich. Falls sie diese fälschlicherweise erhalten haben sollten, leiten Sie diese bitte nicht an jemand anderes weiter, löschen Sie alle Kopien und Anhänge davon und lassen Sie mich bitte wissen, dass die E-Mail an die falsche Person gesendet wurde. This e-mail is confidential. If you received this communication by mistake, please don't forward it to anyone else, please erase all copies and attachments, and please let me know that it has gone to the wrong person. -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
