On Thu, Aug 31, 2017 at 12:41 PM, Ben Pfaff <[email protected]> wrote: > What's the issue with file I/O? If you can help me understand why you > want to get rid of it, maybe I can suggest what to do instead. >
The file IO takes more time than direct access to memory. Even if the actual IO happens on tmpfs, this is still slower, because the accesses to the data require syscalls. using fmemopen instead of fopen in the fuzz target (LLVMFuzzerTestOneInput()) should reduce the overhead. --kcc > > On Thu, Aug 31, 2017 at 09:24:29PM +0200, Bhargava Shastry wrote: > > An update from my side. I have written a small test case for catching > > CVE-2016-2074 here [1]. KCC strongly encourages me to get rid of file > > I/O based APIs such as ovs_pcap_read() and so on. So, my question to > > dev@OVS is: Any suggestions how I can do this? Right now, the test runs > > but is relatively slow. I haven't really benchmarked it so I can't > > provide hard numbers. > > > > [1]: > > https://github.com/bshastry/fuzzer-test-suite/blob/master/ > openvswitch-2.3.2/target.c > _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
