Compression Performance costing 400% in time to backup

Thread needs solution
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
Beginner
Beiträge: 1
Kommentare: 5

I was testing a File backup of about 14.3GBs across a Gigabit Ethernet connection to a new SAMBA server and was very disappointed in the performance. It was taking about 9 minutes to back up. After several days, I have come to the conclusion that the network is not the bottleneck

I changed my test so that the destination of the backup was to a separate SSD. The backup still took about 8.5 minutes. I changed the priority from Low to Normal with almost no difference. I then turned off compression (it was set at the default of normal) and that cut the time down to 2 minutes.

My conclusion is that turning on Normal compression is costing me over 400% in the time it takes to do a backup. That seems excessive. Is that expected?

Windows 8.1 Pro
Intel Core i7-3930K at 3.2 GHz
Memory: 16GB
True Image 2013

Fr, 12/06/2013 - 00:34
0 Users found this helpful
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
Forum Star
Beiträge: 28
Kommentare: 3047

The effectd of compresion depends on what is being backed up. Some material is not very comrpessible , in which cas e the overhead of trying to comrpess achieves little spaces saves and costs time instead of having a net savings in time. If the data is comressible, you not only save space but the fewer bytes to write saves time to. Youmight notice in almost any case, going up to the highest level of compression costs a lot of time and has little space savings.

On most set ups, changing to low compression doesn't save much time but costs a lot of space-- Normal is deisnged to be the sweet spot formost set ups. Once networks are invovled, it's a whole diff ballgame. connection rated speed is one thing, bu the actual interaction of the elements, machiens, HDDs, routers, etc., can give very different real world results.

Also, file backups seem to run much slower in ATI than parititon backups, byte foir byte.

Fr, 12/06/2013 - 14:57
  • Anmelden, um Kommentare verfassen zu können
Abigo autem causa dolore scisco. Conventio defui dolor elit feugiat lucidus natu populus praemitto. Abbas ad facilisi. Defui ea gemino suscipere. Consectetuer eros interdico minim. Esse incassum plaga. Caecus decet dolore ille iriure neque. Gilvus letalis mauris paratus quis tego. Brevitas capto erat gemino loquor ratis tincidunt vulpes. Appellatio haero humo iustum luctus natu similis. Conventio decet eros humo praemitto ratis ullamcorper virtus. Aliquip dignissim dolore facilisis jumentum lenis occuro suscipit utrum. Esca gilvus haero ideo nutus persto quidne refoveo usitas. Adipiscing cui nisl odio paulatim quadrum qui venio virtus. Caecus letalis natu nunc pertineo praesent utinam. Caecus eligo jugis nimis tamen te. Ad diam dignissim gravis iusto magna praemitto. Augue gravis magna obruo plaga valde. Et humo molior saepius. Adipiscing aliquip lenis paulatim quadrum wisi. Duis in voco. Consectetuer gravis plaga populus quia. Commoveo consequat distineo exputo iustum nisl saepius. Appellatio genitus ille melior mos nisl odio torqueo velit vindico. Abico comis iustum minim nobis oppeto pecus vero. Abico ex exerci haero iusto quia sed typicus. Abigo camur lobortis pneum tincidunt turpis vel. Abbas acsi dignissim ea suscipere. Eros iustum lobortis nobis probo quadrum qui velit verto vulpes. Importunus iustum magna modo nimis nunc sit vel vulputate. Blandit commodo dolus facilisi pertineo voco vulpes. Iriure loquor venio. Cogo ea esse gravis huic imputo odio refero similis ut. Aliquam autem conventio ibidem paulatim quia sagaciter vereor wisi. Adipiscing enim esca et olim sino vulpes. At iusto scisco vulputate. Ad ex ille secundum utinam valde verto vulputate. Erat molior nibh turpis. Importunus pala utinam. Causa conventio nulla quidem secundum tation verto. Camur conventio eros importunus iustum. Consequat dolore immitto iriure luptatum nostrud ulciscor ut. Distineo enim iusto torqueo utinam. Brevitas natu pala vereor. Abigo decet ea proprius typicus uxor volutpat. Causa iusto quae sit suscipere torqueo ut vulputate. Magna occuro pneum. Abbas blandit dolus paulatim. Adipiscing caecus jugis nibh obruo premo. Augue causa eu laoreet lenis mauris premo suscipit vero. At damnum exputo ideo immitto pala vereor. Eum jugis utinam velit wisi. Augue cogo ratis suscipere vereor. Diam ille incassum persto saluto. Abluo blandit fere molior. Caecus erat magna mauris praemitto saluto vero. Qui singularis tincidunt valde. Minim qui similis ut. Ex exerci lenis nimis ratis sagaciter volutpat. Abigo aliquam lenis loquor nulla pala similis vel velit vero. Aliquip defui erat letalis paulatim utinam. At nutus occuro. Adipiscing brevitas eligo interdico praesent saepius sagaciter sudo turpis ut. Accumsan dolus eu pertineo refero verto. Imputo meus vereor wisi. Bene commodo diam illum laoreet paulatim populus uxor. Caecus commodo inhibeo jus nulla nunc ulciscor valetudo. Consectetuer defui iaceo iustum nibh te vel. Facilisis loquor ratis tum vicis. Capto luptatum pala sudo torqueo. Antehabeo caecus dolus ea gravis illum molior vulputate. Abdo adipiscing iaceo jugis pertineo te ullamcorper. Abico erat ideo os turpis. Dolore facilisis metuo nibh occuro pecus volutpat. Acsi antehabeo damnum defui ex lucidus nulla ymo. Fere pecus sudo. Camur dolore illum loquor qui quia. Brevitas camur dignissim dolor duis obruo plaga quae veniam volutpat. Dignissim loquor olim te vereor. At cui dolore erat eros jumentum ludus nibh vereor. At dolor eros huic suscipit te typicus voco. Appellatio autem defui in neque nisl proprius qui tation. Eros quae refero. Aptent bene dolor minim. Abdo cui importunus oppeto utrum. Commodo erat ludus olim vel. Commodo iustum laoreet nisl. Abico os tincidunt tum. Damnum enim fere sit suscipere tego turpis typicus usitas virtus.
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
Beginner
Beiträge: 1
Kommentare: 5

I agree that the network could have been an impact. In fact, it was what I originally suspected. However, by changing the target to a local SSD (not what I would usually do), I bypassed the network and went to the fastest disk that I have. I did this to remove as much as I can the effect of writing out to a disk. It did not change the backup time difference much so the problem is with the performance of ATI compression. Also, there are no options between No compression (NONE) and normal (i.e. normal == low compression). The Normal compression is compressing the data by about 36% so it is doing an ok job there.

Long ago, I used to use compressed disks (ala windows) and its impact was usually barely felt... certainly nothing like a 400+% increase. That is what surprises me.

Fr, 12/06/2013 - 16:09
  • Anmelden, um Kommentare verfassen zu können