refs #5710 use a sync fetch and add on the tokutime status variables, not a regular increment, since it is accessed by multiple threads


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refs #5710 add accounting for flush count, number of bytes, IO time (stored as tokutime, shown in seconds), uncompressed size, and compressed size. also add these stats for when the logger writes to disk (os_pwrite, not fsync)


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refs #5710 add counters for the number of bytes read and time spent doing IO, for the various ways you can do a fetch. improve the name of get_tokutime() and get rid of the now defunct toku_current_time_nanoseconds()


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change stress test script to save libutil.so and to recreate the paths for the libraries we need (gdb has trouble otherwise)


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refs #5710 add toku_current_time_nanosec, rename current_time_usec to use 'microsec' to be more consistent


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refs #5710 not the right solution. needs to ignore secondary indexes and therefore get pushed to the handlerton


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closes #5713 make mutex initializers macros (as posix requires) and clean up the if statement garbage


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refs #5710 add FT_MSG_KEYVAL_BYTES_IN to measure the amount of key/value userdata ingested at the root. this value does not count message/xid overhead so it is a good denominator when calculating write amplification


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refs #5710 start new instrumentation work by cleaning out some commented out instrumentation in ft-ops


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refs #5654, grab parent's txn lock when moving rollback entries from child to parent when the child commits. This prevents a race condition with a hot indexer simultaneously adding something to the parent's entry

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refs #5629 get rid of some unneeded byte flipping. stick to little endian witha little endian comparison function.


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closes #5669, increase the cachetable limit, it needs to be at least twice the size of the single pair that we have, otherwise, the evictor may sneak in when we are calling change_pair_attr, and catch the cachetable to have a size of 16, because we have added the new attr but not removed the old one

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