As an aside to this conversation, sysread is noticeably faster than read, using my same simple test. The larger the file, the bigger the difference.
read 0.60891580581665 0.601351976394653 0.600950956344604 0.644972085952759 0.650673866271973 sysread 0.409609079360962 0.405777931213379 0.409843921661377 0.426880121231079 0.432134866714478

In reply to Re^7: Speed reading (files) by kwaping
in thread Speed reading (files) by kwaping

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