Thanks a lot Ben, that was really helpful. The project is using v8 engine embedded in the C++ code, is a build config or can I pass that setting as a parameter in the C++ code?
On Tuesday, December 15, 2020 at 5:10:32 PM UTC+5:30 Ben Noordhuis wrote: > On Tue, Dec 15, 2020 at 9:56 AM Vinayaka Kamath > <vinayak...@couchbase.com> wrote: > > > > Hello All, > > > > The project that I am working on embeds v8 in it. One of the users > reported seeing the following trace in the log files. > > > > > > 2020-12-01T04:48:31.912-08:00 [INFO] "Starting Function for:" > "config::sfdc::accounts" > > 2020-12-01T04:48:31.912-08:00 [INFO] "Fetching list of:" "SFDC::accounts" > > 2020-12-01T04:48:31.950-08:00 [INFO] "Fetching SFDC Objects: " "accounts" > > 2020-12-01T04:54:27.535-08:00 [INFO] "Fetch SFDC (curl) response > status:" 200 "/ #Objects:" 22179 > > 2020-12-01T04:54:43.716-08:00 [INFO] > > 2020-12-01T04:54:43.716-08:00 [INFO] <--- Last few GCs ---> > > 2020-12-01T04:54:43.716-08:00 [INFO] > > 2020-12-01T04:54:43.716-08:00 [INFO] [5463:0x7f2af005c020] 774469 ms: > Mark-sweep 1110.6 (1264.9) -> 1110.6 (1210.4) MB, 497.6 / 0.0 ms (average > mu = 0.778, current mu = 0.000) last resort GC in old space requested > > 2020-12-01T04:54:43.716-08:00 [INFO] [5463:0x7f2af005c020] 775228 ms: > Mark-sweep 1110.6 (1210.4) -> 1110.6 (1196.9) MB, 758.3 / 0.0 ms (average > mu = 0.616, current mu = 0.000) last resort GC in old space requested > > 2020-12-01T04:54:43.716-08:00 [INFO] > > 2020-12-01T04:54:43.716-08:00 [INFO] > > 2020-12-01T04:54:43.716-08:00 [INFO] <--- JS stacktrace ---> > > 2020-12-01T04:54:43.716-08:00 [INFO] > > 2020-12-01T04:54:43.716-08:00 [INFO] ==== JS stack trace > ========================================= > > 2020-12-01T04:54:43.716-08:00 [INFO] > > 2020-12-01T04:54:43.716-08:00 [INFO] 0: ExitFrame [pc: 0x7f2b037168ae] > > 2020-12-01T04:54:43.716-08:00 [INFO] Security context: 0x32a0fa3096b9 > <JSObject> > > 2020-12-01T04:54:43.716-08:00 [INFO] 1: FetchObjects_SFDC(aka > FetchObjects_SFDC) [0x32a0fa30ea89] [Data_Ingestion.js:324] > [bytecode=0x4ef5172bd09 offset=348](this=0x125eac5825a1 > <undefined>,0x19c460402291 <Object map = 0x12664db89e61>) > > 2020-12-01T04:54:43.716-08:00 [INFO] 2: OnUpdate [0x32a0fa30e951] > [Data_Ingestion.js:64] [bytecode=0x4ef5172b1e9 > offset=281](this=0x32a0fa30fd81 <JSGlobal Object>,0x19c460402291 <Object > map ... > > 2020-12-01T04:54:43.716-08:00 [INFO] > > > > I do not have much information on what the user was trying to do here. > Can someone elaborate on when do we generally see GC traces like these? > > > > Thanks > > The what is that V8 ran out of JS heap memory, the why I can't tell - > maybe FetchObjects_SFDC() allocates a lot, maybe there's a memory leak > in the JS code somewhere. > > The default heap limit is approx. 1.4 GB on 64 bits systems. You can > change it with the --max_heap_size=<n> flag, where n is in megabytes. > > There's also --max_old_space_size=<n>, that's an older flag mentioned > in many blog posts. It works pretty much the same. > -- -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/v8-users/78b3431f-280a-4be0-92b8-6ab77d0095d2n%40googlegroups.com.
