"I/O Graph statistics" lacks any caching method
**This issue was migrated from [bug 15822](https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15822) in our old bug tracker.**
Original bug information:
**Reporter:** ute…@‍tis…\
**Status:** UNCONFIRMED \
**Product:** Wireshark\
**Component:** Qt UI\
**OS:** All\
**Platform:** All\
**Version:** 3.0.2
issue