Questions tagged [hashpower]

The hash rate is the measuring unit of the processing power used to secure the Bitcoin network.

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Mining computations by the numbers [duplicate]

On average, how many "computations" (GPU computations, CPU computations, CPU cycles, etc.) does it take to solve a block ("win" a mining race)? What are these computations measured in? Operations? ...
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How can I see my hashrate for litecoin?

Just for the sake of trying I installed Litecoin-Qt 0.6.3c on Ubuntu. And for sure I started solo-mining. The thing is, that the only thing I see is [17:45:34] - Solo mining started I am curious to ...
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Energy & performance comparison: GPU mining vs playing HD Video

Using the built-in ATI video card on my computer, I can mine at about a 30-50 MHps rate. I'm wondering, how does this amount of work compare to normal video card operation? Or how can it be calculated?...
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Hashrate falls by factor of 1000x when now block is found?

Very often my mining hashrate falls from the usual ~550 Mhash/s to about 400-500 khash/s, and I have noticed direct correlation in time with messages like these: btcguild.com:8332 25/04/2013 10:07:14,...
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Is it more efficient to use multiple computers when I have multiple GPUs?

I have 4 video cards: 2x 7970 & 2x 6970. This is a question of efficiency regarding MH/s. Simply, I would like to know which is better: ~1900 MH/s on one machine ~1200 MH/s and ~700 MH/s on ...
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How long does it take to go from 51% hash power to 100% hash power?

Once an attacker has acquired 51% hash power, is it possible to quickly get to 100% hash power by simply refusing to build on blocks created by other mining nodes and therefore discouraging mining ...
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I was getting 7 mhash/s on GUIminer.. but only 0.3 on bit minter?

I'm really new to bitcoins. I have a good computer, cpu based at least. 8 core AMD processor with 4 ghz a core with decent amount of cache. I wanted to make some extra money and use my computer to get ...
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Measuring levels of spammer participation on the Bitcoin network

Is there any reliable way of estimating the number of spammer controlled miners? I was thinking about the common wisdom that BitCoin should have been implemented with a hashing mechanism that is ...
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What is meant by “we are approaching a step change in bitcoin mining”

On a comment on this answer: https://bitcoin.stackexchange.com/a/9494/4173 The following was said: "However, what you need to consider is that we're approaching a step change in bitcoin mining with ...
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Hash rate for litecoind is way below the one I get for bitcoind, is this normal?

I'm running bitcoind on an Ubuntu EC2 image in the Amazon cloud; on another identical image I'm running litecoind. I compiled both of these on the bitcoind instance. According to the getmininginfo ...
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If Bitcoin mining is becoming more and more impractical, what then?

If Bitcoin mining is becoming more and more impractical, where you'll need to buy like a ButterflyLabs unit, and where even eventually a room full of these units might not be enough some day, what ...
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Is possible to control the network? [duplicate]

Can anyone with enough computing power, take over the network ? This is following from a previous comment where I was asking : ... how can that be possible (to control the network) if mining tend ...
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What is the difference between kH/s, MH/s, and GH/s?

I started mining on a friend's computer and it shows 300 kH/s. But when I research other peoples' hash rates I usually see MH/s. Are these speeds the same as kilobytes and megabytes? Also, when I say ...
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Solo mining requirement to win a block everyday?

What's the hash power requirements to solo mine and win at least one block a day? Two cases (with 10% luck, means mining requires to iterate 90% of unsuccessful hashes), Mine 24 hours a day and win ...
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Feasibility of a “High horsepower” attack (based on difficulty -4x adjustments)

This is really Part 3 of this earlier question. Given that the QT client is hard coded to never adjust difficulty more (or less than) a factor of 4... What realistic scenario would cause the ...
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How much ASIC power has been, or is being, shipped in 2013?

Where can I verify how much ASIC mining power has been shipped, how much has been pre-ordered, when it will be shipped, and at what rates and time frames more units will be shipped?
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Are there numbers on how many pre-orders (or total GH/s) ButterflyLabs already received?

The whole Bitcoin world is waiting for ButterflyLabs' entree in the mining scene. Their promised products are quite revolutionary and so they can cause great fluctuations in the BTC price when they ...
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How can one estimate the amount of Watts that is consumed by the mining network as a whole?

I'm trying to estimate the Wattage used in mining operations over time and compare that YoY cost with mining physical materials (gold, silver, etc). I hope that the electrical impact is less than ...
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Given the probability of finding a block, and time taken, can I infer hashrate?

I'm trying to externally calculate the hashrate of a given miner based only on an arbitrarily defined target that I assign, then calculate probability it will be found. Once this probability is ...
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Sudden Drop in Hash Rate GeForce 650 GPU Card

I'm running on a 15" Retina MBP and have just been playing around with mining on it a little bit. I realize GPU mining is almost dead at the moment, but bear with me. Overnight last night I was ...
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ASUS X1650 256 MiB - is it sufficient? [duplicate]

Just learned about BitCoin. As I learned now there is no sense using CPU, just GPU. I have ASUS X1650 256 MiB, is it sufficient to ear at list 1-2 BitCoin a week?
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Is the minimum amount of money required to purchase >50% hash power equal to max worth of all existing bitcoins?

20 BFL Bitforce Mini Rigs (each, $30k) will give about 30THash/Sec hash power for $600k. That's way above 60% of hash power of then total 51THash/Sec. 10.694M total Bitcoin * $18.5 current mtgox best ...
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Bitcoin inflation in 9/12 doesn't seem to have been corrected. Why not and will it be fixed?

I'm looking at the Total Bitcoins in Circulation graph and don't understand why there is a spike of coins being generated in Sept '12. What caused this to happen? Also, since there is a fixed number ...
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How will a massive increase in hashpower affect orphan rates?

Difficulty always lags behind a little. It is also limited in how large adjustments it makes each time. What if the (global) hashrate doubles overnight? What if it quadruples? How much can we expect ...
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Tracking Hash/sec of major pools and individual (solo) miners

I'd like to get a list of the hash power of the major pools, solo miners, and if applicable undocumented hash networks. How can I obtain this information? If this information already exists, how did ...
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How will the Bitcoin network look after BFL ASIC hardware shipments?

There have been over 7000 pre-orders of BFL SC series mining machines, with the cheapest one supposedly running at 3.5 GH/s and the most expensive being 1000GH/s thats a lot of hashes about to be ...
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What happens once the mining reward gets cut in half?

Sometime around the end of 2012 the mining reward is expected to be cut in half from 50BTC/block to 25BTC/block. What effect will this have? Doesn't this mean that it will be less economic to run a ...
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(litecoin) High hashrate but low amount of submitted shares in solo

I'm playing around with litecoin mining and have been mining at a pool but decided to mine solo using cgminer. When I mine at pools the amount of shares submitted to the pool sinks dramatically when ...
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If the computer calculation rate becomes 100x faster, would the value of bitcoin drop to 1% of the previous value?

This is my main concern, but are there any other design flaws with Bitcoin?
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Is there a chart that shows Mhps mint speed over time?

My BitMinter client says that my approximate mint speed is 0.0078/per day on a MacBook Pro Retna. I assume that this value decreases as the speed of the network increases, and therefore my ...
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Does variability of block solution time change as difficulty increases?

We know that the expected average time to solve a block from any given point in time is 10 minutes when the network hash rate matches the current difficulty. However, as difficulty increases are we ...
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Calculating average number of hashes tried before hitting a valid block

I'm toying with the idea of starting to mine, and was wondering how to calculate how many hashes on average must be tried before one will "hit" a valid block? I'm talking about a single user (not a ...
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Over-reporting miner?

I'm running the puddinpop rpcminer-opencl.exe that came with Guiminer. I'm running it with crazy settings -gpugrid=128 -gputhreads=256 -aggression=14 on a FirePro 2270 workstation card, and it's ...
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Mining and Bitcoin Wallet [closed]

I have been mining for over 24 hours @ 97.3 Mhash/s. Shouldn't I have at least obtained .01 bitcoin by now? How do I verify the mining that I am doing is transferring into my Wallet?
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Why does merely having Windows Media Player open double my GPU hashrate?

I'm using poclbm to mine under Windows... processor is an AMD A6-3400M with integrated Radeon HD 6250G GPU. When Windows Media Player is closed, I get a rate of 16 megahashes/second, but when it is ...
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Unknown factor in bitcoin pool breakdown

Some time ago the breakdown was dangerously close to heaving too heavily towards Deepbit with only a small part unknown/single person miners. Now there's a 34% unknown factor. What caused this? Are ...
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How do mining pools figure out the hashing speed of the connected miners?

How do mining pools figure out the hashing speed of the miners connected to it?
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What can a pool operator do with their miners' hashpower?

This issue came up in this question - Are the miners concerned with what the pool operators do with their hashpower?. What can a pool operator do with their miners' hashpower?
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Miner speed conversion

What is the exact ratio one would use to convert Miner speed from Hashes per second to Shares per second, assuming Difficulty 1 shares?
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What can be done about the no-transaction block relayer (currently 71.123.170.150)?

An unknown major solo miner (currently IP 71.123.170.150), most likely a botnet, is relaying blocks with zero transactions. Two weeks ago this miner constituted ~15% of the network, now it constitutes ...
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Are big miners a threat for Bitcoin?

According to this graph, the biggest miner is so big that combined with two of the three runners-up they would have more than 50% of the hashing power. Is that to be considered a threat to the ...
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How fast is the Bitcoin (mining) network?

How fast is the Bitcoin mining network compared to other distributed computing networks? ;)
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How to quickly check your mining speed?

Is there some website that provides some webminer or other way for a person to check their mining speed without actually joining any pool or doing solo mining? Alternatively, are there some miners ...
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What is the ecological effect of increased work for the Bitcoin chain?

As more users use Bitcoin and "forced work" difficulty increases what effect does this have ecologically? It is a silly question I know. I'm just comparing let's say value or effect of using ...
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What hashing speed does my hardware have?

I'm checking this page to know what hashing speed my hardware has. But there's no explanation about the acronyms. For my Core 2 Quad Q9650, what's the expected hashing speed?
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How can I measure the total hashing power of the Bitcoin network?

Is there a way to measure what is the total hashing power of the Bitcoin network at a given time? For pooled mining it isn't a problem - one can rely on statistics provided by the pool (assuming one ...
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What happens if hash rate decreases rapidly?

Since difficulty is only adjusted every 2016 blocks, what would happen if hash rate was to decrease rapidly? Wouldn't this cause blocks to be created less frequently and also making the time until ...
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How does merged mining work?

How does the implementation of merged mining affect the global hash rate of alt chains? Does one solution fit all? Does one solution fit some? Does the rate of "solutions that will fit" decrease ...

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