Re: [HACKERS] W-TinyLfu for cache eviction

2015-12-14 Thread Amit Kapila
On Mon, Dec 14, 2015 at 12:18 PM, Vladimir Sitnikov < sitnikov.vladi...@gmail.com> wrote: > > a global lock would be good enough for a proof of concept that only > evaluates cache hit ratios. > > I think emulator can be used to check hit ratios. That way we can see > how different algorithms affect

Re: [HACKERS] W-TinyLfu for cache eviction

2015-12-13 Thread Vladimir Sitnikov
> a global lock would be good enough for a proof of concept that only evaluates cache hit ratios. I think emulator can be used to check hit ratios. That way we can see how different algorithms affect hit ratio. Is there a set of traces of "buffer load events"? (I did some Google searches like "po

Re: [HACKERS] W-TinyLfu for cache eviction

2015-12-09 Thread Ants Aasma
On Wed, Dec 9, 2015 at 11:31 AM, Konstantin Knizhnik wrote: > I expect synchronization issues with implementation of this algorithm. It > seems to be hard to avoid some global critical section which can cause > significant performance degradation at MPP systems (see topic "Move > PinBuffer and Unp

Re: [HACKERS] W-TinyLfu for cache eviction

2015-12-09 Thread Konstantin Knizhnik
On 03.12.2015 10:27, Vladimir Sitnikov wrote: I've recently noticed W-TinyLfu cache admission policy (see [1]) being used for caffeine "high performance caching library for Java 8". It demonstrates high cache hit ratios (see [2]) and enables to build high-throughput caches (see caffeine in [3])

Re: [HACKERS] W-TinyLfu for cache eviction

2015-12-08 Thread Robert Haas
On Thu, Dec 3, 2015 at 2:27 AM, Vladimir Sitnikov wrote: > I've recently noticed W-TinyLfu cache admission policy (see [1]) being > used for caffeine "high performance caching library for Java 8". > It demonstrates high cache hit ratios (see [2]) and enables to build > high-throughput caches (see

[HACKERS] W-TinyLfu for cache eviction

2015-12-02 Thread Vladimir Sitnikov
I've recently noticed W-TinyLfu cache admission policy (see [1]) being used for caffeine "high performance caching library for Java 8". It demonstrates high cache hit ratios (see [2]) and enables to build high-throughput caches (see caffeine in [3]) Authors explicitly allow implementations of the a