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I'm sorry for adding dupelicate question (e.g. How to speed up initial block chain sync using SSD without wasting space?), but I observered a dramatical speed increase while using RAMDisk or some disk cache enhancement software (like PrimoCache).

I've enlarged database cache size up to 2048MB, it didn't seem to help. (about only 2blocks/min, HDD active time 100%)

I created a 5GB ramdisk (vs 16GB total RAM on my PC) using ImDisk, then chainstate was moved into this ramdisk by creating NTFS junction (mklink /j). After such operations, bitcoin-qt seemed to be boosted up quite a bit(about 60 blocks/min, while HDD seemed to be quite idle).

I wonder if there is any smarter way to do this? Using RAMDisk to accomplish such "boost" seemed to be too awkward.

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  • Welcome to Bitcoin.SE! I see that your question states some new things but, you are right - what it asks is essentially a duplicate.
    – Willtech
    Feb 17, 2018 at 4:08

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When you say smarter, you mean by not storing chainstate on a disposable drive? Unless ImDisk stores to HDD on shutdown.

Try this answer.

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  • RAMDisk is awkward, because:1.ramdisk cannot handle a power loss;2.rigid size, AFAIK, it's not easy to adjust ramdisk size with ImDisk;3.cannot apply on-the-fly, in other word, a user must get ramdisk setup work done before the daemon is started.
    – Chris Chen
    Feb 17, 2018 at 6:07
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    I've tried to read each file in chainstate once to "preheat" them into system cache, and it seemed to work.
    – Chris Chen
    Feb 21, 2018 at 6:59

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