# Zcash Testnet Beta1?

**URL:** <https://forum.zcashcommunity.com/t/zcash-testnet-beta1/1607>\
**Category:** zcashd client\
**Created:** [September 8, 2016, 8:32pm UTC](https://forum.zcashcommunity.com/t/zcash-testnet-beta1/1607 "2016-09-08T20:32:41Z")\
**Posts on this page:** 9\
**Page:** 1

<div class="post-metadata">

**Author:** ![trolloniex](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/trolloniex/32/2833_2.png) [@trolloniex](https://forum.zcashcommunity.com/u/trolloniex)\
**Post date:** [September 8, 2016, 8:32pm UTC](https://forum.zcashcommunity.com/t/zcash-testnet-beta1/1607/1 "2016-09-08T20:32:41Z")

</div>

I see a run from someone on Testnet Beta1 here :  
[https://benchmark.minezcash.com/index.php?title=Main\_Page](https://benchmark.minezcash.com/index.php?title=Main_Page)

git clone [GitHub - zcash/zcash: Zcash - Internet Money](https://github.com/zcash/zcash.git)  
cd zcash/  
git checkout v???

---

<div class="post-metadata">

**Author:** ![Shawn](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/shawn/32/187_2.png) [@Shawn](https://forum.zcashcommunity.com/u/Shawn)\
**Post date:** [September 8, 2016, 9:41pm UTC](https://forum.zcashcommunity.com/t/zcash-testnet-beta1/1607/2 "2016-09-08T21:41:53Z")

</div>

Beta 1 to be released soon, likely this evening or early AM Those values are just from Zcash speed center [https://speed.z.cash](https://speed.z.cash)

And because you have to fill in some values into the table else it collapses in Wikimedia.

EDIT- Holy cow, the last test they ran is down to 15 seconds? From 45?

---

<div class="post-metadata">

**Author:** ![trolloniex](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/trolloniex/32/2833_2.png) [@trolloniex](https://forum.zcashcommunity.com/u/trolloniex)\
**Post date:** [September 8, 2016, 9:58pm UTC](https://forum.zcashcommunity.com/t/zcash-testnet-beta1/1607/3 "2016-09-08T21:58:49Z")

</div>

Timesolveequihash -66.5%

---

<div class="post-metadata">

**Author:** ![Voluntary](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/voluntary/32/4343_2.png) [@Voluntary](https://forum.zcashcommunity.com/u/Voluntary)\
**Post date:** [September 8, 2016, 10:17pm UTC](https://forum.zcashcommunity.com/t/zcash-testnet-beta1/1607/4 "2016-09-08T22:17:45Z")

</div>

15 seconds is supposed to be the base minimum - at least for a certain generation of hardware. Was that an average or did they just get lucky on one test with some outlier-case input data?

---

<div class="post-metadata">

**Author:** ![Shawn](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/shawn/32/187_2.png) [@Shawn](https://forum.zcashcommunity.com/u/Shawn)\
**Post date:** [September 8, 2016, 10:21pm UTC](https://forum.zcashcommunity.com/t/zcash-testnet-beta1/1607/5 "2016-09-08T22:21:07Z")

</div>

I’m guessing it’s just a lucky run they are doing while testing the new wallet. It may go back up once finalized into Beta1, who knows what all they are tweaking on the back end.

---

<div class="post-metadata">

**Author:** ![str4d](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/str4d/32/64_2.png) [@str4d](https://forum.zcashcommunity.com/u/str4d)\
**Post date:** [September 8, 2016, 11:38pm UTC](https://forum.zcashcommunity.com/t/zcash-testnet-beta1/1607/6 "2016-09-08T23:38:05Z")

</div>

The benchmark site shows median data, and uses random nonces each time, so all it means is that over half of the runs had zero results (which results in the minimum solver runtime). If you look at the benchmark graph, you can see that even for the latest run there were some iterations taking longer:

[https://speed.z.cash/timeline/?exe=1&base=1%2B9&ben=time+solveequihash&env=1&revs=50&equid=off&quarts=on&extr=on](https://speed.z.cash/timeline/?exe=1&base=1%2B9&ben=time+solveequihash&env=1&revs=50&equid=off&quarts=on&extr=on)

**EDIT:** Here’s the log output showing the individual runs; five of ten had zero results:

[https://ci.z.cash/builders/zcashperformance/builds/152/steps/time%20solveequihash/logs/stdio](https://ci.z.cash/builders/zcashperformance/builds/152/steps/time%20solveequihash/logs/stdio)

---

<div class="post-metadata">

**Author:** ![daira](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/daira/32/43253_2.png) [@daira](https://forum.zcashcommunity.com/u/daira)\
**Post date:** [September 10, 2016, 1:57pm UTC](https://forum.zcashcommunity.com/t/zcash-testnet-beta1/1607/7 "2016-09-10T13:57:07Z")

</div>

If you look at [https://speed.z.cash/timeline/#/?exe=1&base=1+70&ben=time](https://speed.z.cash/timeline/#/?exe=1&base=1+70&ben=time) solveequihash&env=1&revs=50&equid=off&quarts=on&extr=on , it appears that particular benchmark run just got lucky (or unlucky, if it found zero solutions, which is likely). There are things we can do to substantially reduce the variability of the Equihash solve time; I’m not sure whether or not we’ll get to that before the launch.

Edit: the link is broken, but I intended to point to the graph showing the history of Equihash solution time including the quartiles and extrema.

---

<div class="post-metadata">

**Author:** ![Shawn](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/shawn/32/187_2.png) [@Shawn](https://forum.zcashcommunity.com/u/Shawn)\
**Post date:** [September 10, 2016, 2:12pm UTC](https://forum.zcashcommunity.com/t/zcash-testnet-beta1/1607/8 "2016-09-10T14:12:00Z")

</div>

I saw the more recent results, must have been a lucky run 🍀. I adjusted the time on the wiki accordingly.

---

<div class="post-metadata">

**Author:** ![daira](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/daira/32/43253_2.png) [@daira](https://forum.zcashcommunity.com/u/daira)\
**Post date:** [September 10, 2016, 2:20pm UTC](https://forum.zcashcommunity.com/t/zcash-testnet-beta1/1607/9 "2016-09-10T14:20:27Z")

</div>

As @str4d says, that’s likely to have been an unlucky run that found zero solutions. The graph is somewhat misleading because the higher the solution time, the more solutions are found and therefore the greater chance that one of them will meet the difficulty target. (This will be mostly resolved, at least when multiple mining threads are used, by [Implement a work-queue algorithm to process Equihash partial solutions in parallel · Issue #1239 · zcash/zcash · GitHub](https://github.com/zcash/zcash/issues/1239) .)
