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4 Commits

Author SHA1 Message Date
Ben Johnson
694a82a959 Merge branch 'grow' of https://github.com/xiang90/bolt into xiang90-grow 2016-01-11 14:47:01 -07:00
Gyu-Ho Lee
d97579c399 Add MmapFlags option for MAP_POPULATE (unix) 
This adds MmapFlags to DB.Options in case we need syscall.MAP_POPULATE
flag in Linux 2.6.23+ to do the sequential read-ahead, as discussed in [1].

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[1]: https://github.com/coreos/etcd/issues/3786
 2015-11-08 18:07:10 -08:00
Xiang Li
e67705ed63 do not grow dbsize agressively 
Only grow the database size when the high watermark increases.
We also grows the database size a little bit aggressively to
save a few ftruncates.

I have tested this on various environments. The performance impact
is ignorable with 16MB over allocation. Without over allocation,
the performance might decrease 100% when each Tx.Commit needs a new
page on a very slow disk (seek time dominates the total write).
 2015-11-06 09:39:17 -08:00
Ken Sedgwick
2f4ba1c533 solaris: fix issues with mmap, munmap, madvise and flock 2015-08-21 14:44:13 -07:00