From: | AJG <ayden(at)gera(dot)co(dot)nz> |
---|---|
To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Interesting paper: Contention-Aware Lock Scheduling |
Date: | 2018-05-04 20:45:59 |
Message-ID: | 1525466759279-0.post@n3.nabble.com |
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Lists: | pgsql-hackers |
Another interesting article from Jan 2018 (Tsinghua University and Microsoft
Research)
http://madsys.cs.tsinghua.edu.cn/publications/TS2018-liu.pdf
DudeTx: Durable Transactions Made Decoupled
"This paper presents DudeTx, a crash-consistent durable transaction system
that avoids the drawbacks of
both undo and redo logging. DudeTx uses shadowDRAM to decouple the execution
of a durable transaction into three fully asynchronous steps. The advantage
is that only minimal fences and no memory read instrumentation are required.
This design enables an out-of-the-box concurrency control mechanism,
transactional memory or fine-grained locks, to be used as an independent
component. The evaluation results show that DudeTx adds durability to a
software transactional memory system with only 7.4% ∼ 24.6% throughput
degradation.
Compared to typical existing durable transaction systems, DudeTx provides
1.7× ∼ 4.4× higher throughput.
Moreover, DudeTx can be implemented with hardware transactional memory or
lock-based concurrency
control, leading to a further 1.7× and 3.3× speedup, respectively."
--
Sent from: http://www.postgresql-archive.org/PostgreSQL-hackers-f1928748.html
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