Do you have any idea which version this was fixed in? Matt
On Monday, November 2, 2015 at 4:25:51 AM UTC-5, Jakob Kummerow wrote: > > Correct. This has been fixed in the meantime, but 3.28 is too old. > > On Sun, Nov 1, 2015 at 9:39 PM, Matt Broadstone <[email protected] > <javascript:>> wrote: > >> Hi, >> >> I'm trying to track down an eager deoptimization in my node.js code, and >> it seems to be directly related to a keyed lookup on an object using a >> string. There is a comment on an issue from May ( >> https://code.google.com/p/v8/issues/detail?id=3183#c12) that seems to >> indicate that the assumption is that keyed lookups are by number. Is that >> the case? Is it not possible for me to optimize this method if I require a >> keyed lookup by string? >> >> versions: >> node: v0.12.7 >> v8: 3.28.71.19 >> >> This is the stack for the triggered DEOPT, please let me know if further >> information would help: >> >> [optimizing 0x2d3900bd1609 <JS Function Codec.encode (SharedFunctionInfo >> 0x2d3900b27af9)> - took 0.820, 0.509, 0.214 ms] >> [deoptimizing (DEOPT eager): begin 0x2d3900bd1609 Codec.encode (opt #34) >> @40, FP to SP delta: 56] >> Deferred TaggedToI: NaN >> translating Codec.encode => node=136, height=24 >> 0x7fff5fbff0a0: [top + 80] <- 0x373656140201 ; [sp + 96] >> 0x373656140201 <JS Object> >> 0x7fff5fbff098: [top + 72] <- 0x331bd6004161 ; rbx 0x331bd6004161 >> <true> >> 0x7fff5fbff090: [top + 64] <- 0x3736561487c1 ; [sp + 80] >> 0x3736561487c1 <a BufferBuilder with map 0x28dbca62ad71> >> 0x7fff5fbff088: [top + 56] <- 0xeb789d0f7f1 ; rdx 0xeb789d0f7f1 >> <String[7]: boolean> >> 0x7fff5fbff080: [top + 48] <- 0x31a4d47f5f88 ; caller's pc >> 0x7fff5fbff078: [top + 40] <- 0x7fff5fbff0e0 ; caller's fp >> 0x7fff5fbff070: [top + 32] <- 0x2d3900b7d7f9; context >> 0x7fff5fbff068: [top + 24] <- 0x2d3900bd1609; function >> 0x7fff5fbff060: [top + 16] <- 0x331bd6004121 <undefined> ; literal >> 0x7fff5fbff058: [top + 8] <- 0x331bd6004121 <undefined> ; literal >> 0x7fff5fbff050: [top + 0] <- 0x331bd6004121 <undefined> ; literal >> [deoptimizing (eager): end 0x2d3900bd1609 Codec.encode @40 => node=136, >> pc=0x31a4d47f4edf, state=NO_REGISTERS, alignment=no padding, took 0.062 ms] >> [deoptimizer unlinked: Codec.encode / 2d3900bd1609] >> >> Regards, >> Matt >> >> -- >> -- >> v8-users mailing list >> [email protected] <javascript:> >> 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 [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- -- v8-users mailing list [email protected] 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
