javascript - Why window.performance.now() could return the same fraction part? -


i've faced weird behavior of window.performance.now(). returns values same fraction part time.

all data below statistics, can't reproduce myself.

here possible values (n represent ms number, it's counting normally):

n (whole number) n.995 n.99500000001 n.99500000002 n.995000000003 n.00000000001 n.000000000001 n.000000000004

so, every time it's whole number (or close it) or has fraction part close .995.

this goes different users, windows (xp|vista|7|10) , chrome browser ( 59.0.3071.115, 55.0.2883.87, 49.0.2623.112 ), few firefox ( 52.0 ).

at same time, happens not windows users, of them returns different fraction parts.

the statistics collected multiple websites , happens of them, , started (a week ago). window.performance.now() function not re-defined, still shows 'native code' (via .tostring()).

any ideas why happens?


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