document slab_reassign_chunk_rescues

add get_flushed counter, fix expired_unfetched

get_flushed ticks when directly fetching something that classified as expired.
LRU crawler was ticking expired_unfetched for unfetched _flushed_ values

add get_flushed counter, fix expired_unfetched

get_flushed ticks when directly fetching something that classified as expired.
LRU crawler was ticking expired_unfetched for unfetched _flushed_ values.
should no longer do that.

also removes get_expired from the global stats list. I missed that on review.

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cache_memlimit command for tuning runtime maxbytes

Allows dynamically increasing the memory limit of a running system, if memory
isn't being preallocated.

If `-o modern` is in use, can also dynamic

cache_memlimit command for tuning runtime maxbytes

Allows dynamically increasing the memory limit of a running system, if memory
isn't being preallocated.

If `-o modern` is in use, can also dynamically lower memory usage. pages are
free()'ed back to the OS via the slab rebalancer as memory is freed up. Does
not guarantee the OS will actually give the memory back for other applications
to use, that depends on how the OS handles memory.

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finish stats_sizes rewrite

Now relies on CAS feature for runtime enable/disable tracking. Still usable if
enabled at starttime with CAS disabled. Also adds start option `-o
track_sizes`, and a stat

finish stats_sizes rewrite

Now relies on CAS feature for runtime enable/disable tracking. Still usable if
enabled at starttime with CAS disabled. Also adds start option `-o
track_sizes`, and a stat for `stats settings`.

Finally, adds documentation and cleans up status outputs.

Could use some automated tests but not make or break for release.

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add -o watcher_logbuf_size=N worker_logbuf_size=N

the defaults should just about always be used, but this is now tunable for
completeness. Also handy for writing tests.

This also hopefully makes th

add -o watcher_logbuf_size=N worker_logbuf_size=N

the defaults should just about always be used, but this is now tunable for
completeness. Also handy for writing tests.

This also hopefully makes the watcher.t test not flaky anymore.

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memcached idle connection killer

add protocol documentation

and a note for missing information.

bump some global stats to 64bit uints

total_items is pretty easy to overflow. Upped some of the others just in case.

Implement get_expired stats

Fix building of documentation files.

Apparently I never tested this back in 2014. The $(.TARGET:R) stuff is being
evaluated into nothing on my system and I have no idea where that extension
came fro

Fix building of documentation files.

Apparently I never tested this back in 2014. The $(.TARGET:R) stuff is being
evaluated into nothing on my system and I have no idea where that extension
came from... So just type out the file names explicitly.

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Document negative expiration values

re: GH#142.

try harder to save items

previously the slab mover would evict items if the new chunk was within the
slab page being moved. now it will do an inline reclaim of the chunk and try
until it runs out of

try harder to save items

previously the slab mover would evict items if the new chunk was within the
slab page being moved. now it will do an inline reclaim of the chunk and try
until it runs out of memory.

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split rebal_evictions into _nomem and _samepage

gross oversight putting two conditions into the same variable. now can tell if
we're evicting because we're hitting the bottom of the free memory pool

split rebal_evictions into _nomem and _samepage

gross oversight putting two conditions into the same variable. now can tell if
we're evicting because we're hitting the bottom of the free memory pool, or if
we keep trying to rescue items into the same page as the one being cleared.

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documentation for slab rebal updates

some new variables and change to the '1' mode. little sad nobody noticed I'd
accidentally removed the '2' mode for a few versions.

minor fixes and docs for listen_disabled timer

add a handful of missing stats docs (doh) and shorted the STATS_LOCK a little
bit. the rest seems fine.

Update manpage for -I command.

Update documentation to more accurately reflect the value
that should be passed along as the parameter via command line.

fix typo in 'touch' protocol documentation

[doc]data return by "stats sizes" missing a STAT

Update manpage for -l

describe -b and -S options in man page

Make LRU crawler work from maint thread.

Wasn't sending the condition signal after a refactor :(

Also adds some stats to inspect how much work the LRU crawler is doing, and
removes some printf nois

Make LRU crawler work from maint thread.

Wasn't sending the condition signal after a refactor :(

Also adds some stats to inspect how much work the LRU crawler is doing, and
removes some printf noise for the LRU maintainer.

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documentation update for new features/stats.

Fix typo in doc/protocol.txt

fix typos

changes to fix build of docs with newer xml2rfc