Commit 8155adb9 authored by Kirill Smelkov's avatar Kirill Smelkov

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parent 43e6bcb0
......@@ -4,16 +4,17 @@ Wendelin.core change history
2.0.0 (2018-XX-YY)
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- Switch to using kernel virtual memory manager. Bigfiles are now primarily
accessed with plain OS-level mmap to files from synthetic WCFS filesystem. This
removes overhead of handling pagefaults in userspace and makes bigfile's cache
(now it is the kernel's pagecache) to be shared in between several processes.
This is a major release that switches to using kernel virtual memory manager.
Bigfiles are now primarily accessed with plain OS-level mmap to files from
synthetic WCFS filesystem. This removes overhead of handling pagefaults in
userspace and makes bigfile's cache (now it is the kernel's pagecache) to be
shared in between several processes.
Additionally custom coherency protocol is provided, which allows clients
that want to receive isolation guarantee ("I" from ACID) to still use the shared
cache and at the same time get bigfile view isolated from other's changes.
Additionally custom coherency protocol is provided, which allows clients
that want to receive isolation guarantee ("I" from ACID) to still use the shared
cache and at the same time get bigfile view isolated from other's changes.
By default wendelin.core python client provides full ACID semantics as before.
By default wendelin.core python client provides full ACID semantics as before.
0.12 (2018-04-16)
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