What is StringBuilder's RAM consumption like?

Question

We have a few operations where we are doing a large number of large string concatenations, and have recently encountered an out of memory exception. Unfortunately, debuggin

Answer 1

Each time StringBuilder runs out of space, it reallocates a new buffer twice the size of the original buffer, copies the old characters, and lets the old buffer get GC'd. It's possible that you're just using enough (call it x) such that 2x is larger than the memory you're allowed to allocate. You may want to determine a maximum length for your strings, and pass it to the constructor of StringBuilder so you preallocate, and you're not at the mercy of the doubling reallocation.