MACROMEDIA FLASH MEDIA SERVER 2-SERVER-SIDE ACTIONSCRIPT LANGUAGE Przewodnik Instalacji Pobierz pdf (Strona 16)

Flash Media Server 3 performance

Flash Media Server has signicantly increased how many streams can be delivered concurrently

withasingleserverlicense.Deliveringmorestreamsrequiresfewerserversandlowersthecostof

deploymentwhencomparedwithFlashMediaServer2.Linuxdeploymentshavebeenimproved

byover300%overversion2.

ere are numerous features that contribute to increased performance. e features discussed

in this section include:

• Generalperformanceoptimization

• Connectionthrottling

• Enhancedprocessscopes

• Auto-closeidleconnections

• EnhancedRTMP(RTMPE)

• Built-inbandwidthdetection

• Processscopes

• Distributedcores

Factors aecting performance

is section explains how performance for Flash Media Server 3 is aected by dierent condi-

tions. Measuring performance increases is done by comparing the number of concurrent

streamsforagivenCPUutilization.Knowinghowmanystreamsaserverwillsupportwillhelp

you understand how many servers you need to deploy.

e number of streams a server can deliver is dependent upon a number of conditions, including:

• Protocol—RTMPisthehighestperformingprotocol,followedbyRTMPE.

• Video bitrate (quality)—e lower the bitrate of your video, the more concurrent streams can

be delivered by your server.

• Platform—YoucandelivermoreconnectionswithlessCPUusageutilizingLinuxRedHat4.

• Hardware—HardwaresuchasRAM,diskspeed,CPU,andnetworkspeedwillallinuencethe

streaming capacity of Flash Media Server 3.

• Conguration—Flash Media Server 3 comes precongured for optimal streaming perfor-

manceformostsituations.Changingthecongurationmayimproveyourperformance.

• Application complexity—Ifyoudeploycustomplug-insordevelopcomplexserver-side

application logic, your performance may increase or decrease.

• Usage—e way your users interact with your video will impact the server performance.

Interactionscouldincludeconnecting,disconnecting,seeking,orpausing.iswillbe

discussed in more detail in the next section.

Flash Media Server 3 performance metrics

Flash Media Server 3 has over two times the performance on Windows deployments and over

threetimestheperformanceonLinux.efollowingtablesshowtheperformancemetricsfor

Flash Media Server in two scenarios:

• VOD—Using prerecorded video

• Live video—UsinglivevideostreamedfromFlashMediaEncoder2

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 54 55

Brak uwag

MACROMEDIA FLASH MEDIA SERVER 2-SERVER-SIDE ACTIONSCRIPT LANGUAGE Przewodnik Instalacji Strona 16