How do I practice user-centered design with / without limited access to users?

We have an interesting project that is a prototype for a hypothetical domain-specific user base that does not currently exist.

I would like to apply good design practices and would like to adapt our existing user-oriented approaches to the absence of indeed User.

A few things seem to be indeed Users could be replaced by appropriately researched / estimated people, but certain other techniques, such as validating design decisions and collecting metrics, seem almost impossible.

Does anyone have suggestions for this type of situation?

Internal memory – Samsung Galaxy S6 4.6 MB / s sequential write access (Why slow?)

I bought a Samsung Galaxy S6 in August 2016. Everything was fine until last week.
It has very sluggishly. For example, if I draw my unlock pattern after a reboot, it will take a while to load the boot screen until the screen turns off. I get in after a few tries, but each tap takes a long time to respond. Loading the keyboard takes about 25 seconds.

I downloaded System Monitor, but the CPU usage was not 100%, so there is no app / virus that consumes too much CPU time.
According to Geekbench 4, the CPU / GPU performance for the Galaxy S6 is even above average.

But then I decided to test the memory speed. I ran Androbench and the results are very bad (see screenshot).
Screenshot of Androbench

Normally, the performance should conform to this test.

My questions are: How can I find out why storage is so slow?
Is it just Flash Wear? Is a driver broken? Which part should I replace if it is a hardware error?

If something is unclear, just comment it and I'll work on the question.
Thank you in advance!

magento2 – Can I access changed parameters in an After / Arond plugin?

I want to access a parameter of a method in one after this Plugin. The value of the parameter has changed within the original method, and I want to access the changed value. Example:

Class vendorClass
Function paintBlue ($ room, $ options)
// ...
$ options['color'] = & # 39; bright green & # 39 ;;

Now my plugin looks like this:

Class myPerfectMagentoPlugin
public function __construct ()

public function afterPaintBlue ($ subject, $ result, $ room, $ options)
// This $ options array does not contain the color value:
var_dump ($ options);

How can I access the changed content of the? $ options variable in after this Plugin?

Bitcoin Core – Access to the TX ID of the destination from the transaction output of the TX message

As you know, we have an input and output part in the Bitcoin protocol, and more specifically in TX messages. We can access the transaction ID of the previous transaction via previous_output in the input part. We can also access the output address via a script in the TX output part. I want to know that in tx there is a section that allows us to access the transaction ID of the target.

Root Access – Is it possible to execute multiple ADB commands as a single-line command? (case change

Is it possible to execute the following commands as a single-line command? to quickly change and gain something

C:  Users  Users  Desktop> ADB Push Boot Animation / SD Card
C:  Users  Users  Desktop> AdB Shell
$ su
# mount -o rw, remount / system
# cp /sdcard/ /system/media/
# chmod 644 /system/media/
# Restart


I can not access iLo over the Internet.


Since we purchased an HP server from my host, we can not access the iLo from our location or from any other server in their own DC. They claim that they can access iLo absolutely flawlessly, but it barely works with us. They claim iLo IP The address is brutally enforced over the Internet, and sometimes iLo does not answer HTTP requests (I know what you think, but bares me …). They said I had to try logging in after 30 minutes, or try another browser will work, that was hardly the case from my home PC (Chrome, IE) or from their own server (Firefox, Opera) , the strange thing, even though the IPMI managed to load from my Android phone and log in well !! but that was pointless! …

Who had such a problem with iLo? Workarounds to load IPMI with minimal effort?

Many Thanks,

solaris – mysql ERROR 1045 (28000): access for user & # 39; root & # 39; @ & # 39; localhost & # 39; denied (with password: YES)

I have mysql-5.7 installed on Solaris 11 The installation was successful, but I can not find the file with the temporary password.

I get this error message when I try to log in as mysql -u root -p.

Workarounds and troubleshooting tips are helpful

Magento Enterprise – SQLSTATE[42000]: Syntax error or access violation: 3057 Incorrect user-level lock-name

When I run php indexer.php --reindexall Command I get the following error.

PDOException: SQLSTATE[42000]: Syntax Error or Access Violation: 3057 Incorrect user-level lock-name & # 39; magento_prod.index_process_024cd255-917a-11e9-8262-3bda9350d94f & # 39 ;. in /var/www/html/bradywarehouse/production/lib/Zend/Db/Statement/Pdo.php:228
Stack trace:
# 0 /var/www/html/magento/production/lib/Zend/Db/Statement/Pdo.php(228): PDOStatement-> execute (Array)
# 1 /var/www/html/magento/production/lib/Varien/Db/Statement/Pdo/Mysql.php(110): Zend_Db_Statement_Pdo -> _ execute (Array)
# 2 /var/www/html/magento/production/app/code/core/Zend/Db/Statement.php(291): Varien_Db_Statement_Pdo_Mysql -> _ execute (Array)
# 3 /var/www/html/magento/production/lib/Zend/Db/Adapter/Abstract.php(480): Zend_Db_Statement-> execute (Array)
# 4 /var/www/html/magento/production/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract-> query (& # 39; SELECT IS_USED _... & # 39 ;, array)
# 5 /var/www/html/magento/production/lib/Varien/Db/Adapter/Pdo/Mysql.php(504): Zend_Db_Adapter_Pdo_Abstract-> query (& # 39; SELECT IS_USED _... & # 39 ;, array)
# 6 /var/www/html/magento/production/app/code/core/Mage/Index/Model/Resource/Helper/Mysql4.php(83): Varien_Db_Adapter_Pdo_Mysql-> query (& # 39; SELECT IS_USED _ .. . & # 39 ;, array)
# 7 /var/www/html/magento/production/app/code/core/Mage/Index/Model/Lock/Storage/Db.php(96): Mage_Index_Model_Resource_Helper_Mysql4-> isLocked (& # 39; magento_prod .... & # 39)
# 8 /var/www/html/magento/production/app/code/core/Mage/Index/Model/Lock.php(257): Mage_Index_Model_Lock_Storage_Db-> isLockExists (& # 39; magento_prod .... & # 39; )
# 9 /var/www/html/magento/production/app/code/core/Mage/Index/Model/Lock.php(227): Mage_Index_Model_Lock -> _ isLockExistsDb (& # 39; index_process_0 ... & # 39; )
# 10 /var/www/html/magento/production/app/code/core/Mage/Index/Model/Process.php(480): Mage_Index_Model_Lock-> isLockExists (& # 39; index_process_0 ... & # 39 ;, ZERO)
# 11 /var/www/html/magento/production/app/code/core/Mage/Index/Model/Process.php(184): Mage_Index_Model_Process-> isLocked ()
# 12 /var/www/html/magento/production/app/code/core/Mage/Index/Model/Process.php(260): Mage_Index_Model_Process-> reindexAll ()
# 13 /var/www/html/magento/production/shell/indexer.php(168): Mage_Index_Model_Process-> reindexEverything ()
# 14 /var/www/html/magento/production/shell/indexer.php(216): Mage_Shell_Compiler-> run ()
# 15 {main}

Next Zend_Db_Statement_Exception: SQLSTATE[42000]: Syntax Error or Access Violation: 3057 Incorrect user-level lock-name & # 39; magento_prod.index_process_024cd255-917a-11e9-8262-3bda9350d94f & # 39 ;. The query was: SELECT IS_USED_LOCK (?); in /var/www/html/magento/production/lib/Zend/Db/Statement/Pdo.php:235
Stack trace:
# 0 /var/www/html/magento/production/lib/Varien/Db/Statement/Pdo/Mysql.php(110): Zend_Db_Statement_Pdo -> _ execute (Array)

I am using Magento Enterprise Edition and MySQL version 5.7.26

How can I fix it?