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經過一些在線研究,我找不到兩者之間的基準比較。我確實發現了一個redis vs mongodb:(How much faster is Redis than mongoDB?)。redis比Postgres快了多少?
根據我的以下非常不科學的測試,在rails中運行兩個簡單的不相等的代碼,我猜測寫入大致相同,但redis的讀取速度大約快兩倍。考慮到我的觀點通常爲50ms〜150ms,速度並不像我想象的那麼大。
我的問題是,有沒有其他的基準可以給我關於這兩個「粗略」的想法?通過兩種慣例配置,甚至可以對照heroku基本測功機及其postgres服務進行測試?謝謝!
##NOTICE: #follow is implemented with Redis. #public is just a postgres ActiveRecord property.
[93] pry(main)> Benchmark.measure{ 100.times { c.public = !c.public; c.save; c.public = !c.public; c.save}}
=> #<Benchmark::Tms:0x007faeb3c814f0
@cstime=0.0,
@cutime=0.0,
@label="",
@real=0.743117,
@stime=0.03000000000000025,
@total=0.6000000000000005,
@utime=0.5700000000000003>
[94] pry(main)> Benchmark.measure{ 100.times { u.unfollow! u2; u.follow! u2 }}
=> #<Benchmark::Tms:0x007faeb1409c20
@cstime=0.0,
@cutime=0.0,
@label="",
@real=0.988483,
@stime=0.14000000000000057,
@total=0.8800000000000026,
@utime=0.740000000000002>
[95] pry(main)> Benchmark.measure{ 100.times { u.follows? u2 }}
=> #<Benchmark::Tms:0x007faeb2f22ea8
@cstime=0.0,
@cutime=0.0,
@label="",
@real=0.045072,
@stime=0.009999999999999787,
@total=0.06000000000000405,
@utime=0.05000000000000426>
[96] pry(main)> Benchmark.measure{ 100.times { Course.first.public? }}
=> #<Benchmark::Tms:0x007faeac97b8c0
@cstime=0.0,
@cutime=0.0,
@label="",
@real=0.11811,
@stime=0.0,
@total=0.09000000000000341,
@utime=0.09000000000000341>
如果我給你一個關於Postgres vs Redis Object Storage Benchmarks的鏈接,它會有幫助嗎? – Pavan
@Pavan,是的,這將有所幫助! – randomor
除非是這個:https://gist.github.com/NateBarnes/3001890這個集合快了大約2倍,速度提高了1倍...... – randomor