Hi,
There is a recent drop in overall score on JetStream 2 (~4.5%) from Chrome v79 to v80. There are 3 tests that are significantly hurting our score(Scores from my local machine): Tests Chrome 79 Score Chrome 80 Score Async-fs 244 72 crypto-sha1-SP 356 141 crypto-md5-SP 430 179 Note: Higher Score indicate better performance On further investigation, it seems turning on v8_enable_pointer_compression OR v8_enable_31bit_smis_on_64bit_arch significantly hurt our performance in these cases. Here are the results from my local machine before and after turning off both flags on the x64 release build of d8. Tests Current Execution time (ms) Execution time without the flags (ms) Improvement Async-fs 120290.64 36429.46 230% crypto-sha1-SP 2869.39 1041.91 175% crypto-md5-SP 2690.55 1157 133% Have we seen this before? Does anyone know why we are seeing this? Thanks Suraj. -- -- v8-dev mailing list [email protected] http://groups.google.com/group/v8-dev --- You received this message because you are subscribed to the Google Groups "v8-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/v8-dev/741085bd-0131-42e6-bc53-30522c4f27dd%40googlegroups.com.
