Hi, Does anyone have any suggestions as to how to determine the actual file size of the regular unix file associated with a TFile? I'm managing a collection of TFiles, and I'd like to be able to determine if one is getting near 2 gigabytes in size so that I can close it and open a new one before writing a new object to it. I tried using TFile::GetBytesWritten(), but when my program exits, the final file size is about 50% bigger than my cutoff threshold. For example, when GetBytesWritten determines that I've reached my testing cutoff of 10k in size, I open a new TFile, do some things, and exit; when I look at the first file, it's about 15k in size. The same thing was happening with a cutoff of 100k: the file wound up being 150k. What is the extra 50%, and can I always count on it? (Probably not, but I thought I'd ask...) Thanks, Reid
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