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Kirill Smelkov
wendelin.core
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8155adb9
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8155adb9
authored
Jun 28, 2018
by
Kirill Smelkov
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CHANGELOG.rst
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8155adb9
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@@ -4,16 +4,17 @@ Wendelin.core change history
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@@ -4,16 +4,17 @@ Wendelin.core change history
2.0.0 (2018-XX-YY)
2.0.0 (2018-XX-YY)
------------------
------------------
- Switch to using kernel virtual memory manager. Bigfiles are now primarily
This is a major release that switches to using kernel virtual memory manager.
accessed with plain OS-level mmap to files from synthetic WCFS filesystem. This
Bigfiles are now primarily accessed with plain OS-level mmap to files from
removes overhead of handling pagefaults in userspace and makes bigfile's cache
synthetic WCFS filesystem. This removes overhead of handling pagefaults in
(now it is the kernel's pagecache) to be shared in between several processes.
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
Additionally custom coherency protocol is provided, which allows clients
that want to receive isolation guarantee ("I" from ACID) to still use the shared
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.
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)
0.12 (2018-04-16)
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