Bitcoin Core verifying process is too long

[ingiltere]

Bitcoin Core verifying process is too long, sometimes it takes almost 1 hour. Is there a fix for that situation? I tried to raise database cache and thread etc. but nothing significantly changes. I have 4 GB DDR2 ram. It was faster earlier releases. I see this problem after 0.09 version.

[1714840917]

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[1714840917]

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[achow101]

Bitcoin Core verifying process is too long, sometimes it takes almost 1 hour. Is there a fix for that situation? I tried to raise database cache and thread etc. but nothing significantly changes. I have 4 GB DDR2 ram. It was faster earlier releases. I see this problem after 0.09 version.

What do you mean "verifying process"? Do you mean at start up when it says "verifying blocks" or during syncing and reindexing?

I personally have not have issues with that though. Startup takes a minute or two and reindexing takes a few hours, but it isn't that bad.

How powerful is your CPU? A lot of it depends on the CPU speed.

Also, keep in mind that the blockchain has grown significantly since 0.9 was released.

[shorena]

Bitcoin Core verifying process is too long, sometimes it takes almost 1 hour. Is there a fix for that situation? I tried to raise database cache and thread etc. but nothing significantly changes. I have 4 GB DDR2 ram. It was faster earlier releases. I see this problem after 0.09 version.

Thats roughly 10 year old hardware you are using.

-snip-
How powerful is your CPU?
-snip-

...and which generation?

[ingiltere]

Yes, I'm talking about "verifying blocks" before program opens. I have quad core cpu, Q8XXX series 2.3 GHZ. PC is from 2007 but I occasionally upgraded parts. It was running great before, after new releases I faced this problem.

[shorena]

Yes, I'm talking about "verifying blocks" before program opens. I have quad core cpu, Q8XXX series 2.3 GHZ. PC is from 2007 but I occasionally upgraded parts. It was running great before, after new releases I faced this problem.

0.12 should do this faster, but I havent looked at the actual code to understand whether it need some special CPU instructions that might not have been around in 2007. I doubt it though.

Anyway, you can reduce the number of blocks that are verified on start up and the thoroughness they are checked with. Create a bitcoin.conf (if you dont have one already) and put the following lines in. By default it checks 2 days worth of blocks, 288. You can e.g. reduce this to 144 to only check on day worth of blocks.

Code:

# How many blocks to check at startup (default: 288, 0 = all)
checkblocks=288

# How thorough the block verification is (0-4, default: 3)
checklevel=3