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Edit "README.persistent_mode.md"

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instrumentation/README.persistent_mode.md
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@ -155,14 +155,14 @@ and going much higher increases the likelihood of hiccups without giving you any
real performance benefits.
A more detailed template is shown in
[utils/persistent_mode](../utils/persistent_mode). Similarly to the previous
mode, the feature works only with afl-clang-fast; `#ifdef` guards can be used to
suppress it when using other compilers.
[utils/persistent_mode](../utils/persistent_mode). Similarly to the deferred
initialization, the feature works only with afl-clang-fast; `#ifdef` guards can
be used to suppress it when using other compilers.
Note that as with the previous mode, the feature is easy to misuse; if you do
not fully reset the critical state, you may end up with false positives or waste
a whole lot of CPU power doing nothing useful at all. Be particularly wary of
memory leaks and of the state of file descriptors.
Note that as with the deferred initialization, the feature is easy to misuse; if
you do not fully reset the critical state, you may end up with false positives
or waste a whole lot of CPU power doing nothing useful at all. Be particularly
wary of memory leaks and of the state of file descriptors.
PS. Because there are task switches still involved, the mode isn't as fast as
"pure" in-process fuzzing offered, say, by LLVM's LibFuzzer; but it is a lot