The latest WCPI snapshot – taken at 12:00AM EDT on 2/23/2010 – shows the Peak Memory Pressure Index value for Windows 7 improving, but not by much. An influx of new Windows 7 systems in the past few weeks is serving to reshape the exo.repository’s demographics. And this, in turn, is being felt in the WCPI calculations, which are becoming increasingly influenced by Microsoft’s latest and greatest.
Figure 1 – Windows 7 WCPI Index Values (Interactive)
The above is good news for IT shops concerned about Windows 7’s memory consumption habits. The above trend has helped drop the percentage of monitored Windows 7 systems showing excessive memory use to just below 75% – an 11 point improvement vs. our previous analysis pass, which was based on data through January, 2010. We’re hoping that, as even more Windows 7 systems come online, these numbers will normalize further and we’ll be able to offer an ever more accurate reading of the broader Windows 7 installed base.
Unfortunately, the news is not so great for Windows Vista users. Fully 79% of Vista systems we monitored continue to show signs of high memory pressure and related paging activity. IT organizations should factor this into their consideration of when to migrate away from Microsoft’s much-maligned Windows 7 predecessor and to the newer, less RAM hungry Windows 7.