performance – What can cause higher CPU time and duration for a given set of queries in trace(s) ran on two separate environments?

I’m troubleshooting a performance issue in a SQL Server DR environment for a customer. They are running queries that consistently take longer in their environment than our QA environment. After analyzing traces that were performed in both environments with the same parameters/filters and with the same version of SQL Server (2016 SP2) and the exact same database, we observed that both environment were picking the same execution plan(s) for the queries in question, and the number of reads/writes were close in both environments, however the total duration of the process in question and the CPU time logged in the trace were significantly higher in the customer environment. Duration of all processes in our QA environment was around 18 seconds, the customer was over 80 seconds, our CPU time was close to 10 seconds, theirs was also over 80 seconds. Also worth mentioning, both environments are currently configured to MAXDOP 1.

The customer has less memory (~100GB vs 120GB), and slower disks (10k HHD vs SSD) than our QA environment, but but more CPUs. Both environments are dedicated to this activity and should have little/no external load that wouldn’t match. I don’t have all the details on CPU architecture they are using, waiting for some of that information now. The customer has confirmed they have excluded SQL Server and the data/log files from their virus scanning. Obviously there could be a ton of issues in the hardware configuration.

I’m currently waiting to see a recent snapshot of their wait stats and system DMVs, the data we originally received, didn’t appear to have any major CPU, memory or Disk latency pressure. I recently asked them to check to see if the windows power setting was in performance or balanced mode, however I’m not certain that would have the impact we’re seeing or not if the CPUs were being throttled.

My question is, what factors can affect CPU time and ultimately total duration? Is CPU time, as shown in a sql trace, based primarily on the speed of the processors or are their other factors I should be taking in to consideration. The fact that both are generating the same query plans and all other things being as close as possible to equal, makes me think it’s related to the hardware SQL is installed on.

Question about Merkle path verification

Merkle trees in general are useful in the context of a prover-verifier model.

A prover Peggy wants to prove to verifier Victor that a merkle root R, which Victor knows ahead of time, commits to a tree which includes a specific leaf L.

To do so, Peggy would send the element L well as the Merkle proof (or branch) containing all hashing partners L is combined with to produce R. In your example diagram, that proof consists of Hk, Hij, Hmnop, and Habcdefgh. Victor uses these elements to recompute R from it, and compare it with his pre-existing knowledge of R.

So to answer your question: certainly something has to keep Hk (or the elements that has to it, so it can be recomputed), but it doesn’t need to the same party as the one that does the verification. If there is only one party involved, there is nothing to prove.

How would I go about creating a tear drop shape of cubes in mathematica?

I am just practicing making some new designs with Mathematica and I thought of this recently. I want to make a tear drop shape (doesn’t matter the orientation) constructed of mini cubes. I am familiar with the preliminary material, I am just having some difficulty getting it to work.

dnd 5e – Is a Necromancy wizard’s hit point maximum reduced when they gives hit points to his homunculus from the Create Homunculus spell?

Conversely, you can raise your homonculus’ hit point maximum without your necromancer reducing his hit point maximum.

Inured to Undeath states

your hit point maximum can’t be reduced

This is a very straightforward effect. Since specific beats general and this rules specifically says that it’s not possible for your hit point maximum to be reduced, it simply cannot happen unless an even more specific rule says so.

Does Create Homunculus override Inured to Undeath?

We intuitively accept that Inured to Undeath allows you to ignore hit point maximum reductions from the attack of undead creatures such as a Specter. Let’s look at how the Specter applies the hit point maximum reduction:

its hit point maximum is reduced by an amount equal to the damage taken

Now lets look at how Create Homunculus applies the hit point maximum reduction:

Your hit point maximum is reduced by the total

Both of these sentences effectively read as:

[a creature’s] hit point maximum is reduced by [a number]

Since they say the same thing and don’t use any wording that makes us think they should override your specific ability of ignoring hit point maximum reductions, Inured to Undeath applies here.

Create Homunculus does go on to state the following:

The reduction to your hit point maximum can’t be removed by any means before then, except by the homunculus‘s death.

That is a specific rule but it only stops you from removing the hit point maximum reduction. Since your hit points were never reduced, that is not an issue for you.

###bWill my Homonculus’ hit point maximum increase anyway?

Now that we know that you can ignore the hit point maximum reduction, does your homonculus still get to increase his hit point maximum?

Here are the rules that determine how large the hit point maximum exchange is supposed to be:

Whenever you finish a long rest, you can spend up to half your Hit Dice if the homunculus is on the same plane of existence as you. When you do so, roll each die and add your Constitution modifier to it.

The bold text shows you how to calculate the total by which each creature’s hit point maximum will change.

Let’s look at the next sentence which performs the hit point maximum transfer:

Your hit point maximum is reduced by the total, and the homunculus’s hit point maximum and current hit points are both increased by it.

Here we are applying 2 separate effects:

  1. The first effect is to reduce your hit point maximum by the total.
  2. The second effect is to reduce your hit point maximum by it which clearly refers to the total.

Note that the second effect only refers to the total which was calculated when you rolled the dice and not to the amount by which your hit point maximum was actually reduced. This means that getting around the hit point maximum reduction doesn’t stop your homunculus from raising his hit point maximum at all.

Official Support

This interpretation is supported by the Sage Advice Compendium as of at least version 2.5.

What is the actual speed in MPH or KPH for movement in CoD?

I looked in the core book but I couldn’t find it. The index points to page 92 but I don’t see what the actual MPH is. I get that CoD is not necessarily a stats-heavy game but I’d like something to go off of if some moves at 4, someone else moves at 4×4 or 10×4.

usability – In a Desktop application, should the recent file list placed directly in the file menu

A desktop tool mostly offers recent files. I am used to press Alt+F and then 1 to open the first recent files. It seems that I learned it from Notepad++. I thought it was a “platform convention” (refs Usability Guidelines), but it doesn’t seem like that.

Here are some examples. What would you recommend why? Maybe I am a too old-school user wanting to have the list of recent files with one action (one hotkey), not with a combined action (two subsequent hotkeys).

Notepad++

grafik

vs.code

grafik

IntelliJ

grafik

JabRef

grafik

(I want to change that –> https://github.com/koppor/jabref/issues/313, but I am unsure)

macos – How do I make the emoji keyboard pop up faster

  1. I am typing something in a text field
  2. press ctrl+cmd+Space to show the emoji selector
  3. type an emoji name
  4. click the emoji I want
  5. 💪

But the computer delay between (2) and (3) is way too long, and the first few characters of the emoji name isn’t entered into the emoji search bar. The animation takes so long to finish.

How can I get rid of the emoji pop up animation so that I won’t have this problem?

Or, alternatively, how can I circumvent this problem entirely and use another (equally convenient) method of inputting emoji?

magento2 – Magento 2 how to disable cart sharing between stores?

I wan’t to disable the shared cart between stores under same website.

I wan’t accounts to be shared, but not carts, is it possible?

I tried the following solutions: Disable cart sharing between different Stores of website in Magento 2?

I created the plugin for QuoteRepository but did not work.

Greetings!

App Windows – Adobe Photoshop 2021 v22.0.0.35 (x64) Multilingual | NulledTeam UnderGround

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Millions of designers, photographers, and artists around the world use Photoshop to make the impossible possible.

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Minimum Requirements:
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– Operating system: Microsoft Windows 7 with Service Pack 1, Windows 10* (Version 1709 or later)
– RAM 2 GB or more of RAM (8 GB recommended)
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What are og tags?

What are og tags?