Yii: Does renderPartial caches content of view files?
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I need to render and display instances of different models(comments, polls, etc) on the same page. Those instances are sorted by date, so it is possible that there will be couple comments then poll then another commetns and once more poll and so on.

So I am calling renderPartial in a loop. I am afraid that this can work slow as each renderPartial needs to read file from hdd.

So my question is: does renderPartial caches content of the file somewhere in the memory during one http request? So calling renderpartial multiple times will not touch hdd every time. 