files: 0.725
device: 0.657
network: 0.564
performance: 0.529
kernel: 0.440
architecture: 0.440
permissions: 0.426
socket: 0.410
PID: 0.379
register: 0.343
arm: 0.328
mistranslation: 0.319
i386: 0.305
virtual: 0.302
hypervisor: 0.289
peripherals: 0.282
debug: 0.262
vnc: 0.261
x86: 0.258
boot: 0.248
risc-v: 0.246
semantic: 0.239
ppc: 0.225
VMM: 0.206
TCG: 0.184
KVM: 0.144
graphic: 0.126
user-level: 0.087
assembly: 0.062

QAPI: Avoid generating empty source files