[XMR] Monero - A secure, private, untraceable cryptocurrency

[equipoise]

My blockchain got corrupted when the electricity stopped. I resynced from scratch and it took about 24 hours. Previously I resynced from scratch a few times on the same machine on the same USB3 external hdd and on the same internet connection for 1-3 hours (it was on bitmonerod 0.9.0 tagged and before tagged, not 0.9.1). What could be the issue with the slow sync this time?

I'm not sure I'm understanding. Are you using the same version as before?

What CPU do you have?

I'm using 0.9.1 now. Previous times I was using 0.9.0 tagged and previous version (0.9.0 before tagged). Windows 7 64x. Mobile Core I7 (4 cores, 8 logical cores, 6 MB cash, with AES-NI).

Thank you for clarifying. We are looking into it.

I ran 0.9.1 again and it got to block 135000 in 43 minutes and block 270000 in 2 hours and 25 minutes. Then i checked my .bat file and the "--db-sync-mode fastest:async:10000" option was missing (fastest:async:1000 is the default and I'm using 10000, but it seems I deleted it by mistake). Then I started it again with the option added and it got to 135000 in 17 minutes and to 646069 in 2 hours and 25 minutes. That was the speed I experienced with 0.9 beta2. I hope I didn't alerted all the dev team. Great missive and great dev team. Congratulations to the new members. Keep the good work going.

Thank you for the follow up. We're going to take a look at whether there is a better default for the parameter, although higher numbers increase memory usage, so it may not be best for everyone to increase it.

That's what I expected too, but trying with 1000, 10000, 25000 and 100000 I can't see overall difference in RAM usage on my 16GB RAM system. It's using about 1 GB RAM on my system during sync with each option and most of it is shareable. After sync it's using 500 MB. The private working set (not shareable) is just 36-50 MB on my system. Also on my system there is a good speed improvement between 1000 and 10000, but going to 25000 and 100000 doesn't improve the speed more and it stays the same.

Your observations are exactly what is expected; smooth misspoke about increased memory usage. Increasing the sync interval just controls how much unwritten data is allowed to accumulate in the FS cache, but that doesn't affect program RAM usage. (He was probably thinking about batch size, which *does* increase memory usage.)
And yes, there's a practical threshold above which there's no longer any performance difference, because when the cache flush hits, there's enough unwritten data in cache to keep the storage device 100% busy until the sync/flush finishes. (It's also possible that your system's default settings have automatically started flushing the cache before your specified interval hits.)

Thank you for the clarification. I'll test if increasing the --batch-size helps the sync speed on my system - there's plenty of free RAM I'm not using most of the time.

Finally I have some time to test this more; however, there's no --batch-size option for birmonerod. There's such an option only for blockchain_import.

[bitebits]

Since Monero is fungible (nice!) it can't have colored coins, correct? One XMR = one XMR.

Not in the same way as Bitcoin. We are looking at how best to approach assets as a research goal.

Thanks for your reply and lead. Coincidentally I just listened to fluffypony talking about Monero Assets (storing metadata in the 'TX_EXTRA' field, Bitcoin's OP_RETURN) during the 'Bitcoinference Monero Talk' (uploaded 2015.06.10). I can by the way recommend to watch the whole video, very informative.

https://www.youtube.com/watch?v=GEVm1dMn5Ks&feature=youtu.be&t=2142

[lulla.by]

Monero is one of the few old coins I still have in my crypto portfolio. Keep it up guys.

[aiwe]

Since Monero is fungible (nice!) it can't have colored coins, correct? One XMR = one XMR.

Lets say as a business I would like to make a 10 million USD (Monero market cap), international, private and instant transaction with another company. Monero would be perfect for this. But since Monero is fungible, I can't just color a coin and say it represents our 10 million USD transaction.

How can such a thing currently be solved without moving the price too much?

Use Payment ID ? This will allow you to confirm that the money were sent.

[dEBRUYNE]

Third dev meeting in approximately 2 hours (17:00 UTC). Dev meeting will be held at #monero-dev on freenode.

If you have an IRC client, just make sure you are on the freenode server and you can subsequently join #monero-dev

If you don't have an IRC client, you can follow the dev meeting using:

http://webchat.freenode.net/

Set the channel to -> #monero-dev

And pick a nickname you like. Everyone is welcome to follow the dev meeting!

http://www.timeanddate.com/worldclock/converted.html?iso=20160305T17&p1=0&p2=179&p3=37&p4=166&p5=102&p6=240&p7=137&p8=70&p9=56&p10=103&p11=136&p12=195

[dEBRUYNE]

Logs for the dev meeting held on 2016-03-05 (summary will be posted as soon as possible):

https://getmonero.org/2016/03/05/overview-and-logs-for-the-dev-meeting-held-on-2016-03-05.html

[twistelaar]

Nice to see XMR price rising. Is it because of the BTC news?

Is there also an 1 click install wallet for mac? thanks!

[c789]

Has there been discussion on adding "fungible" as a fourth pillar of Monero (secure, private, untraceable, fungible)? True fungibility is a valuable property of Monero that BTC lacks. For those of us who have been with Monero for a long time, this is not news to you, but Monero is attracting more attention and I think it would benefit from showcasing its fungibility property and why it's so important/valuable (no coins can be blacklisted, blocked, etc.).

I think it's a key property that many don't know about, and they don't know about it because it's not showcased like the other properties/pillars. I think it would only benefit XMR to showcase this property. Has this topic been discussed?

[GingerAle]

Nice to see XMR price rising. Is it because of the BTC news?

Is there also an 1 click install wallet for mac? thanks!

btc news?

light wallet, at bottom of this pg, ure best bet for 1 click install

https://getmonero.org/getting-started/choose

[bitebits]

Logs for the dev meeting held on 2016-03-05 (summary will be posted as soon as possible):

https://getmonero.org/2016/03/05/overview-and-logs-for-the-dev-meeting-held-on-2016-03-05.html

Thanks for keeping us up-to-date!

Indeed maybe not a dev-meeting decision, but I do as well hope we get rid of the term 'mixin' in version 1.0:

It sounds shady, is associated with 'mixing' but it isn't, and the term 'mixin' does not cover what is actually stands for: number of ring signatures. So thanks for bringing up the reminder and lets decide on an alternative word (at least 'ring size' is understandable for me as a not so technical user, but of course open for better suggestions).

[dEBRUYNE]

Logs for the dev meeting held on 2016-03-05 (summary will be posted as soon as possible):

https://getmonero.org/2016/03/05/overview-and-logs-for-the-dev-meeting-held-on-2016-03-05.html

Thanks for keeping us up-to-date!

Indeed maybe not a dev-meeting decision, but I do as well hope we get rid of the term 'mixin' in version 1.0:

It sounds shady, is associated with 'mixing' but it isn't, and the term 'mixin' does not cover what is actually stands for: number of ring signatures. So thanks for bringing up the reminder and lets decide on an alternative word (at least 'ring size' is understandable for me as a not so technical user, but of course open for better suggestions).

Fully agree, there is a thread for discussion here:

https://forum.getmonero.org/20/general-discussion/2501/changing-the-term-mixin-to-something-more-useful

[twistelaar]

Nice to see XMR price rising. Is it because of the BTC news?

Is there also an 1 click install wallet for mac? thanks!

btc news?

light wallet, at bottom of this pg, ure best bet for 1 click install

https://getmonero.org/getting-started/choose

I heard there a some issues with BTC development what causes price rices for coins like XMR, ETH, FCT.

Is there also a wallet you can install, and open it with 1 click?

[GingerAle]

Nice to see XMR price rising. Is it because of the BTC news?

Is there also an 1 click install wallet for mac? thanks!

btc news?

light wallet, at bottom of this pg, ure best bet for 1 click install

https://getmonero.org/getting-started/choose

I heard there a some issues with BTC development what causes price rices for coins like XMR, ETH, FCT.

Is there also a wallet you can install, and open it with 1 click?

I'm not a mac user, so I don't know what is involved for jwinterm's wallet. In general, Monero is the most user-unfriendly cryptocurrency, because a majority of the effort is spent on the fundamentals of the coin - making the code better. But honestly it doesn't take that long to learn to use the software. The thing that takes the longest is syncing up with the network, as any of the "light clients" that exist are really just connecting to someone elses node, so you are sacrificing some privacy for the convenience of .... well I don't really know what.

edited to add, the core GUI is coming, jwinterms works fine, and mymonero is a useful way to use monero as of now.

[jwinterm]

It isn't quite one click atm, you have to put it in a folder with your own simplewallet binary, so at least several clicks.

[twistelaar]

Nice to see XMR price rising. Is it because of the BTC news?

Is there also an 1 click install wallet for mac? thanks!

btc news?

light wallet, at bottom of this pg, ure best bet for 1 click install

https://getmonero.org/getting-started/choose

I heard there a some issues with BTC development what causes price rices for coins like XMR, ETH, FCT.

Is there also a wallet you can install, and open it with 1 click?

I'm not a mac user, so I don't know what is involved for jwinterm's wallet. In general, Monero is the most user-unfriendly cryptocurrency, because a majority of the effort is spent on the fundamentals of the coin - making the code better. But honestly it doesn't take that long to learn to use the software. The thing that takes the longest is syncing up with the network, as any of the "light clients" that exist are really just connecting to someone elses node, so you are sacrificing some privacy for the convenience of .... well I don't really know what.

edited to add, the core GUI is coming, jwinterms works fine, and mymonero is a useful way to use monero as of now.

Well it would be nice if the team or somebody else can develop an user friendly 1 click wallet right? Would also gain more people and attention...

There is also a simple web wallet I see, is it safe option as well?

[saddambitcoin]

Twistelaar, there is an easy "1 click" GUI in progress.

https://forum.getmonero.org/9/work-in-progress/2476/the-official-qt-gui-project
https://github.com/mbg033?tab=activity

[dEBRUYNE]

Well it would be nice if the team or somebody else can develop an user friendly 1 click wallet right? Would also gain more people and attention...

There is also a simple web wallet I see, is it safe option as well?

It's from fluffypony, who is a core-team member, thus considered safe as in trustworthy. However, one should always be cautious with using webwallets.

[aerbax]

I have some quick notes up for the dev meeting today..

https://hellomonero.com/article/monero-weekly-dev-meeting-notes-2016-03-05

[bitebits]

Has there been discussion on adding "fungible" as a fourth pillar of Monero (secure, private, untraceable, fungible)? True fungibility is a valuable property of Monero that BTC lacks. For those of us who have been with Monero for a long time, this is not news to you, but Monero is attracting more attention and I think it would benefit from showcasing its fungibility property and why it's so important/valuable (no coins can be blacklisted, blocked, etc.).

I think it's a key property that many don't know about, and they don't know about it because it's not showcased like the other properties/pillars. I think it would only benefit XMR to showcase this property. Has this topic been discussed?

I think it was luigi1111 (edit: apparently it was Adam Back in February 2014) mentioning that privacy is a side effect of fungibility. So basically it is already there.

But more I wonder how many people outside the cryptocurrency world know or understand what fungibility is, so how much it would really add. People (at least some) care for privacy.

[Drhiggins]

I have some quick notes up for the dev meeting today..

https://hellomonero.com/article/monero-weekly-dev-meeting-notes-2016-03-05

Good stuff.