0.9.8 statistics fubared?

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RobF
Level 3
Level 3
Posts: 14
Joined: Fri Oct 04, 2013 3:12 pm

0.9.8 statistics fubared?

Post by RobF »

The cache seems to be working but the stats for free L2 cache don't seem to be working correctly.
If I've read 22 GB shouldn't there be about that much minus L1 Cache in the L2 Cache?
According to the stats below I have about 7GB in my L2 cache.
my l2 cache is a 128GB SSD with a max partition.
My l1 cache is 4GB with a block size of 32KB.

In the previous version I would see the L2 cache fill up over time.
Its hard to tell but it doesn't seem to be doing that.

Code: Select all

Volume 1TB (L:)
2014-01-22 16:06:52
-------------------
Total Read              22.59GB
Cached Read             10.43GB
L2Storage Read          2.08GB
L2Storage Write         2.15GB
Total Write             6.69GB
Urgent Write            0
Normal Write            0
Deferred Blocks         0
Trimmed Blocks          0
Free Cache (L1/L2)      275.78MB / 115.44GB
Cache Hit Rate          46.15%
Thanks,
Rob.
minhgi
Level 10
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Posts: 256
Joined: Tue May 17, 2011 3:52 pm

Re: 0.9.8 statistics fubared?

Post by minhgi »

Most likely the cache read is from the L1.
RobF
Level 3
Level 3
Posts: 14
Joined: Fri Oct 04, 2013 3:12 pm

Re: 0.9.8 statistics fubared?

Post by RobF »

minhgi wrote:Most likely the cache read is from the L1.
blocks expiring from L1 get moved to L2. Correct?
Therefore I should see L2 grow over time
minhgi
Level 10
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Posts: 256
Joined: Tue May 17, 2011 3:52 pm

Re: 0.9.8 statistics fubared?

Post by minhgi »

Cached Read is combine read of cache both for L1 & L2. L2Storage cache is for L2 only. You should only needs to concentrate on the L2 Read, as that the data being cache on the SSD.
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