<p>This worked for me:</p>
<pre><code>bitcoind -daemon -dbcache=4000
</code></pre>

CC BY-SA 4.0
2021-12-15T18:39:04.480Z
2021-12-15T18:52:11.210Z
2021-12-15T18:52:11.210Z
Bitcoingraffiti
<p>First, make sure you have <code>listen=1</code> in your bitcoin.conf file, and that the P2P port is open on your VPS so that it can make more than 8 connections.</p>

<p>Then you'll want to make sure you have a high disk speed or IO specified (definitely not HDD - I have a feeling you meant SSD). The faster the SSD the better. 2GB RAM should be fine, but you may want to up it to 4GB and 4 CPUs, at least while syncing. <code>bitcoind</code> will use the most resources while syncing, then you can downgrade once it's synced.</p>

CC BY-SA 4.0
2020-03-05T02:12:00.087Z
Adding connections does not speed anything up (generally you only sync from outgoing connections). Adding RAM is likely the most important thing (and equivalently increasing dbcache setting; otherwise more RAM doesn't help).
Pieter Wuille
CC BY-SA 4.0
2020-03-05T01:27:46.983Z
2020-03-05T01:27:46.983Z
j4ys0n
<p>You can:</p>
<ul>
<li>stop bitcoind; download the blocks from another source (there are some through torrent) and copy them to the data directory; You then restart bitcoind and let it go through the blockhain validating everything.</li>
<li>increase the database cache size with the command line -dbcache. You can increase this to max 4GB. But you'll need a more ram in your system.</li>
</ul>

CC BY-SA 4.0
2020-03-05T02:15:30.247Z
More than 4GB works fine (only on 64-bit systems, of course), and is certainly beneficial.
Pieter Wuille
CC BY-SA 4.0
2021-11-03T21:46:34.460Z
`-dbcache=2000` really helped here, although the OP may need to settle for `1200`. Also temporarily stopping other process which were using RAM freed up more RAM for disk cache and dbcache. But dbcache was definitely the most helpful. When the sync is complete, I will remove -dbcache option because it's [not needed](https://forum.bitcoingold.org/t/faq-speeding-up-ibd-a-full-nodes-first-sync/4841).
joeytwiddle
CC BY-SA 4.0
2020-03-04T21:02:58.270Z
2020-08-02T06:11:18.750Z
2020-08-02T06:11:18.750Z
johanpm
<p>My VPS has 2gb RAM and CPU core is 1 and 1 TB HDD storage. The sync speed is very slow. Currently it has about 700 MB free RAM. bitcoind is taking about 66% of the 2GB ram.
Should I add 1GB more RAM or is there any way to get similar improvement using any configuration?</p>

<bitcoind><synchronization>
What should I do to increase bitcoind sync speed?
John
# What should I do to increase bitcoind sync speed?

(Asked by: username_0 on 2020-03-04)

My VPS has 2gb RAM and CPU core is 1 and 1 TB HDD storage. The sync speed is very slow. Currently it has about 700 MB free RAM. bitcoind is taking about 66% of the 2GB ram.
Should I add 1GB more RAM or is there any way to get similar improvement using any configuration?

**Tags:** bitcoind, synchronization


---

## 3 answers

### Answer by username_1 on 2021-12-15. Score: 1

This worked for me:
bitcoind -daemon -dbcache=4000


---

### Answer by username_2 on 2020-03-05. Score: 0

First, make sure you have `listen=1` in your bitcoin.conf file, and that the P2P port is open on your VPS so that it can make more than 8 connections.

Then you'll want to make sure you have a high disk speed or IO specified (definitely not HDD - I have a feeling you meant SSD). The faster the SSD the better. 2GB RAM should be fine, but you may want to up it to 4GB and 4 CPUs, at least while syncing. `bitcoind` will use the most resources while syncing, then you can downgrade once it's synced.

> **Comments:**
> **username_3**: Adding connections does not speed anything up (generally you only sync from outgoing connections). Adding RAM is likely the most important thing (and equivalently increasing dbcache setting; otherwise more RAM doesn't help).  

---

### Answer by username_4 on 2020-03-04. Score: -1

You can:

* stop bitcoind; download the blocks from another source (there are some through torrent) and copy them to the data directory; You then restart bitcoind and let it go through the blockhain validating everything.
* increase the database cache size with the command line -dbcache. You can increase this to max 4GB. But you'll need a more ram in your system.

> **Comments:**
> **username_3**: More than 4GB works fine (only on 64-bit systems, of course), and is certainly beneficial.  
> **username_5**: `-dbcache=2000` really helped here, although the OP may need to settle for `1200`. Also temporarily stopping other process which were using RAM freed up more RAM for disk cache and dbcache. But dbcache was definitely the most helpful. When the sync is complete, I will remove -dbcache option because it's [not needed](https://forum.bitcoingold.org/t/faq-speeding-up-ibd-a-full-nodes-first-sync/4841).  

---

