Ideas to Improve SharePoint Usage4

What are these 4 Ideas?

1. 7 Steps to check SharePoint Health

2. Avoid common Deployment Mistakes

3. Analyze SharePoint Usage

4. Which Pages are Slow and Why?

Bonus: Real Life Troubleshooting Example

7 Step SharePoint Health Check

#1: End User Health

#3: System Health

#2: Site Health

#4: IIS Health#5: AppPool

Health#6: SQL & Service

Health

#7: Web Parts

Check #1: End User Health#1: Geo Location

#2: User Environment

#3: Errors

Check #2: Site Health#1: Load

#2: Failures

#3: Performan

ce

#4: Infrastruct

ure

#5: End User Index

Check #3: System Host Health

#1: CPU & Memory #3: Process Check: Need to RE-DEPLOY?

#2: I/O: Static & Logs

Check #4: IIS Health#1: Threads

#2: Throughput

#3: Page Size

Check #5: AppPool Health#1: Memory

#2: Garbage Collection

#3: Worker Threads

Check #6: SQL & Service Health

#2: Connectivity Issues

#1: Excessive SQL Roundtrips

Check #7: Web Parts#2: Deployment

#3: Bad Coding: 211 SQL!

#1: Performance

Avoid common Deployment Mistakes

CONNECTIVITY, MISSING FILES, PERMISSION, …

Who’s talking with whom?

How many Web Sites are actually running?

How many requests make it to SharePoint’s

AppPool?

Do we call any external services

Is our SQL Server

overloaded?

Any Deployment Mistakes? HTTP 5xx, 4xx?

Which errors are thrown by which page?

Which Errors impact how many

users?

Any Bad WebPart?

WebParts that can’t be loaded!

Here is the page that uses this

WebPart

Connectivity Issues between Services? Watch out for

Connection Exceptions!

This is the page that tries to

connect to that backend service!

Root Cause: Configuration

Issue

Authentication Issues?How many users

have authentication issues?

Which pages are users trying to

access?

User Permission Problems? #1: Permission Issue Detected!

#2: Related to SocialNavigationControl

#3: Here is the problematic page

Missing Lists?List not found Exception!

Here is the page that references this list!

Missing Columns? Somebody deleted a column?

Here is the page that shows that column!

Bad Filter Settings?Bad filter settings

result in Exceptions

Here is the page that uses that bad filter!

Analyze SharePoint usageWHO IS USING WHAT, HOW FROM WHERE?

How are people navigating through SharePoint?Which browsers

do people use?Where are they

from? Which Office?

How do they navigate through the site?

How fast/slow are these pages

for them?Maybe impacted by bad network connectivity?

Which Lists/Views are Used?How often used? How fast/slow? Time spent in SQL

Server?

Same information shown per List

High Failure Rate?

Which pages are slowHOW TO IDENTIFY THEM?

What are the top slowest end user pages? How Fast/Slow for

the end user?How much of that is Server Time?

What makes them slow? How do these pages load?

Lots of JavaScript that loads slow?

Maybe cache on a Proxy/CDN?

Reasons for slow pagesCLIENT AND SERVER SIDE

Many reasons for bad performance Frontend

Overloaded and complex Pages

Too much JavaScript slows down older browsers

Bad content caching

Backend Bad/Too Much Database Access

Bad Coding of custom code

Overhead due to configuration issues and resulting logs/exceptions

High Memory Consumption

Wrong Deployment Configurations (e.g: worker threads, …)

Overloaded Pages

2.6MB for Home Page !

Don’t overload with too much

information!

Database Impact: too many requests 211! SQLs per

Page Request

Database Impact: Same SQL

Same SQL called many times per

page!

Database Impact: Whom to blame?

Overloaded Pages with too many Web PartsBadly implemented custom web parts3rd party WebParts or Controls

Bad Coding of Custom Web Parts - #1

ALL List Items are retrieved from the Database

DO NOTint noOfItems = SPContext.Current.List.Items.Count;

Item Count is kept redundant in the AllUserData table and also kept in memory

DOint noOfItems = SPContext.Current.List.ItemCount;

Bad Coding of Custom Web Parts - #2DO NOTfor (int itemIx=0;itemIx< SPContext.Current.List.Items.Count;itemIx++) { SPListItem listItem = SPContext.Current.List.Items[itemIx]; // do something ...} Every access to Count and Items Property queries the whole SharePoint list

We end up with 202 SQL Executions with a total exec time of > 1s

Good Coding of Custom Web Parts - #2DOSPListItemCollection items = SPContext.Current.List.Items;foreach (SPListItem listItem in items) { // do something ...}

Only first access to the collection queries the data

Telerik Grid Control Going Wild

#1: Data Driven ProblemDepending on the user input on that request we see up to 493! SQL Calls per request

Root Cause: Every Grid Cell executed a new SQL

#2: Statements not prepared

None of these executions has been prepared

High Garbage Collection

Memory Heavy Apps result in High GC

that impacts Performance

High GC Result of High Memory Usage!

Long Running GCs!

Analyze Memory Patterns

High GC: Performance Heap AnalysisWhich classes stay on

the heap?

Which have the biggest impact?

Who is keeping them in memory?

Real life TroubleshootingTHE JOURNEY OF A FRUSTRATED SHAREPOINT USER

Frustrated User report bad Response Times

Frustrated User

Slow Page Load caused by Browser JS Time

Slow Page Load caused by Server-Side Processing

Really slow page 6.8s to deliver Default.aspx page

Involved Web Parts

Most of the Time spent in waiting

WebPart uses multiple parallel Threads

Async Threads are busy with I/O

First Remote Call is Very Slow

Web Service call by ContentEditorWebPart

HttpWebRequests uses ServicePoint internally

First Web Service Requests takes 5.8s to return

Thread Limit lets all other Threads wait!

We have 10 parallel calls in our background threads

The other background threads spend their time“waiting” in the ServicePoint

Solution: Change Defaults

http://apmblog.compuware.com/2013/03/12/net-and-sharepoint-performance-dont-let-default-settings-ruin-your-end-user-experience/

Key Points to Take Home

#1: End User Health: Happy or Frustrated? Desktop or Mobile?

#3: System Health: CPU, Memory, Process Distribution,

…

#2: Site Health: Any Errors? Any Performance

Issues?

#4: IIS Health: Bandwidth? Threads? HTTP 4xx, 5xx?

#5: AppPool Health: Memory, CPU, GC,

Exceptions, Logs …

#6: SQL & Service Health: # Roundtrips, Data Amount, CPU,

Memory, I/O

#7: Web Parts: 3rd Party & Custom. Bad

Coding and Bad Deployments lead to

crashes

More Links for YouTools: http://dynatrace.com/en/sharepoint

More Stories: http://blog.dynatrace.com/

YouTube Tutorials: http://bit.ly/dttutorials

Thank You!