device: 0.790
files: 0.550
performance: 0.523
graphic: 0.471
network: 0.349
debug: 0.327
semantic: 0.241
vnc: 0.214
permissions: 0.183
PID: 0.139
socket: 0.120
boot: 0.102
other: 0.092
KVM: 0.016

hw/char/riscv_htif.c and hw/char/sifive_uart call qemu_chr_fe_write() and ignore return value