gistfile1.txt

Data:

linux-5.18.6-gentoo source tree

Command:

time grep -rli "asdf" .

# Native

pleb@gamey /usr/src/linux $ time grep -rli "asdf" .
./drivers/tty/sysrq.o
./drivers/s390/block/dasd_ioctl.c
grep: ./certs/signing_key.pem: Permission denied
./arch/x86/boot/compressed/vmlinux.bin
./arch/s390/include/uapi/asm/dasd.h
./arch/powerpc/platforms/powermac/udbg_adb.c
./vmlinux.o
./.tmp_vmlinux.kallsyms1
./.tmp_vmlinux.kallsyms2
./vmlinux

real    0m8.359s
user    0m7.589s
sys     0m0.748s

# QEMU NVMe

qemu-system-x86_64 -nographic -nodefaults -drive file=foo.img,if=none,id=nvm -device nvme,serial=deadbeef,drive=nvm -kernel /boot/vmlinuz-5.18.6-gentoo-x86_64 -serial stdio -initrd /boot/initramfs-5.18.6-gentoo-x86_64.img -m 4096 -append console=ttyS0 -accel kvm

rescueshell /mnt/linux-5.18.6-gentoo # time grep -rli "asdf" .
./arch/powerpc/platforms/powermac/udbg_adb.c
./arch/s390/include/uapi/asm/dasd.h
./arch/x86/boot/compressed/vmlinux.bin
./vmlinux.o
./.tmp_vmlinux.kallsyms1
./.tmp_vmlinux.kallsyms2
./vmlinux
./drivers/tty/sysrq.o
./drivers/s390/block/dasd_ioctl.c
real    2m 20.00s
user    1m 58.76s
sys     0m 6.39s

# QEMU HDA

qemu-system-x86_64 -nographic -nodefaults -hda foo.img -kernel /boot/vmlinuz-5.18.6-gentoo-x86_64 -serial stdio -initrd /boot/initramfs-5.18.6-gentoo-x86_64.img -m 4096 -append console=ttyS0 -accel kvm

rescueshell /mnt/linux-5.18.6-gentoo # time grep -rli "asdf" .
./arch/powerpc/platforms/powermac/udbg_adb.c
./arch/s390/include/uapi/asm/dasd.h
./arch/x86/boot/compressed/vmlinux.bin
./vmlinux.o
./.tmp_vmlinux.kallsyms1
./.tmp_vmlinux.kallsyms2
./vmlinux
./drivers/tty/sysrq.o
./drivers/s390/block/dasd_ioctl.c
real    3m 0.93s
user    2m 0.10s
sys     0m 22.90s