Sum of GetMemoryUsage of all vSendMsg entries.
Declared in <net.h>
[[guarded_by(0x7ff36f2e02a8), guarded_by(0x7ff36e4bcad8), guarded_by(0x7ff37ef68298), guarded_by(0x7ff3770c4f58), guarded_by(0x7ff38f628268), guarded_by(0x7ff37eb78c08), guarded_by(0x7ff37bc1b2b8), guarded_by(0x7ff38919b8c8), guarded_by(0x7ff37a03c108), guarded_by(0x7ff383afd4f8), guarded_by(0x7ff37ca25ad8)]]
size_t m_send_memusage = {0};