MongoDB - does document size matter when updating - pushing item to array? -

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does document size matter when updating (pushing new item) nested array in document?

i mean, have document historical data , know, days document charged new items often. should split document "historical data" , "today data" documents?

reading not frequent update operation in case. example 700 updates while 20 reading per day.

adding new document move document in disk if there adjust self make slower. reading less , think ok. if outgrow space, must moved on disk larger area. creating document padding in case insert , ok. http://docs.mongodb.org/manual/core/record-padding/


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