Search found 16 matches

by gregfreemyer
Fri Sep 08, 2017 12:47 am
Forum: Report Bugs
Topic: L2 cache occasionally clears on its own
Replies: 7
Views: 10421

Re: L2 cache occasionally clears on its own

I uninstalled Primocache and was still able to reproduce the issue of USB-3 devices dissappearing. Obviously it isn't a Primocache issue. If anyone has more general troubleshooting advice, I'd love to hear it. My first effort is to directly connect my drives to the MB, instead of via a PCIe Gigabyte...
by gregfreemyer
Fri Sep 01, 2017 11:40 pm
Forum: Report Bugs
Topic: L2 cache occasionally clears on its own
Replies: 7
Views: 10421

Re: L2 cache occasionally clears on its own

Nothing in the eventlogs My Cache is once again empty (a surprise since it went over a month the last time). Not sure when it happened, I wasn't using the system much the last couple days. I have 2 files in the C:\Windows\minidump folder. I don't know if they are related. Aug 28 and Aug 30 dates Is ...
by gregfreemyer
Tue Aug 22, 2017 10:38 pm
Forum: Report Bugs
Topic: L2 cache occasionally clears on its own
Replies: 7
Views: 10421

L2 cache occasionally clears on its own

PrimoCache version: 2.7.3 Cache Settings:L1 64192 MB / L2 1907 GB / Gather Interval 1 / Block Size 64 KB Cache Strategy read-data & write-data / Defer-Write - 300 Sec Windows OS: Win 8.1 Hardware Information (CPU/Motherboard/Memory/Harddisks): Intel i7-5820 / AsRock x99 / 128 GB / USB-3 externa...
by gregfreemyer
Mon Mar 06, 2017 8:32 pm
Forum: Technical Support
Topic: How to pre-load the cache on a high-end PC?
Replies: 26
Views: 24433

Re: How to pre-load the cache on a high-end PC?

To my surprise, the python script Robf posted does the job. It must use a different API than the process I use from cygwin.
by gregfreemyer
Mon Mar 06, 2017 7:18 pm
Forum: Technical Support
Topic: How to pre-load the cache on a high-end PC?
Replies: 26
Views: 24433

Re: How to pre-load the cache on a high-end PC?

I would have expected that all reads go automatically into L2 unless L2 is filled. And if L2 is filled, a "last used first out" approach should decide which block of L2 is discarded to make space for what you are just reading. Thats the expectation. I have to think about if I can verify f...
by gregfreemyer
Sun Mar 05, 2017 12:13 am
Forum: Technical Support
Topic: How to pre-load the cache on a high-end PC?
Replies: 26
Views: 24433

Re: How to pre-load the cache on a high-end PC?

No, it isn't the pause. I've setup a 64GB L1 cache in RAM and 2TB of L2 cache. If I rapidly read 500 GB of data from a rotating media, most of it doesn't make it to L2. I've found that if I read in ~60GB of data, then kill the reading app, the L2 cache gets a burst of data. Since my L2 cache is NVME...
by gregfreemyer
Sat Feb 25, 2017 3:44 pm
Forum: Technical Support
Topic: How to pre-load the cache on a high-end PC?
Replies: 26
Views: 24433

Re: How to pre-load the cache on a high-end PC?

As I continue to work with PrimoCache, I am less and less confident I know how to force data into the cache. I recently emptied my L2 cache (all 2TB was emptied), now I have a 400GB of data I want to work with in the next 48 hours. I'm attempting to get it into the L2 cache, but it doesn't seem to b...
by gregfreemyer
Fri Feb 17, 2017 5:31 pm
Forum: Technical Support
Topic: Should I be able to cache a 5TB drive
Replies: 1
Views: 3829

Should I be able to cache a 5TB drive

I know the L2 cache is limited to 2TB.

But I'm trying to add a 5TB drive as a volume to be cached, not to hold the cache. PrimoCache is refusing it. But it let me add a 1TB drive after it refused the 5TB drive, so it seems like 5TB may be beyond some limit?
by gregfreemyer
Mon Jan 23, 2017 7:44 pm
Forum: Technical Support
Topic: How to pre-load the cache on a high-end PC?
Replies: 26
Views: 24433

Re: How to pre-load the cache on a high-end PC?

Too bad the AsRock x99 Deluxe has not M.2 slot at all. But it does. I have my current 2TB Samsung 960 Pro in it. Working fine. I also have e a 1-port PCIe card, so I could go to 2 of the 2TB drives if it was warranted. For now, a single 2TB drive seems sufficient, but not excessive. As per what you...
by gregfreemyer
Mon Jan 23, 2017 5:19 pm
Forum: Technical Support
Topic: How to pre-load the cache on a high-end PC?
Replies: 26
Views: 24433

Re: How to pre-load the cache on a high-end PC?

http://barefeats.com/hard210.html They got 5900 MByte/s using four 951 M.2 cards. Those are specc'ed at 2150 MByte/s each. So four 960 Pro (specc'ed 3500 MByte/s each) will presumeably result around 9600 MByte/s in total. And on the HP they got near 12000 MByte/s as I have heard. The article says &...