Monday 9 April 2018

Horrible performance when upgrading from node v6.7.0 to v8.11.1

Hello all, I have been spending the past few days investigating poor performance for an websocket graphql api application when upgrading node from v6.x to v8.x.I have taken lots of flame graphs but I cannot figure out where the bottleneck is. Does anyone know what ___kdebug_trace_string is? It appears to be taking significantly more time in my application after upgrading.Check out this flame graph: https://ift.tt/2IzVenF check out these profile logs:node v8.x profile log (slow): https://ift.tt/2JxpJvF v6.x profile log: https://ift.tt/2EvgKaL

Submitted April 09, 2018 at 07:19AM by tjmehta

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