yannick.naumann/RT-Task-Generator-QEMU
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RT-Task-Generator-QEMU/util
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Alex Bennée 367189efae accel/tcg: include cs_base in our hash calculations 
We weren't using cs_base in the hash calculations before. Since the
arm front end moved a chunk of flags in a378206a20 (target/arm: Move
mode specific TB flags to tb->cs_base) they comprise of an important
part of the execution state.

Widen the tb_hash_func to include cs_base and expand to qemu_xxhash8()
to accommodate it.

My initial benchmark shows very little difference in the
runtime.

Before:

armhf

➜  hyperfine -w 2 -m 20 "./arm-softmmu/qemu-system-arm -cpu cortex-a15 -machine type=virt,highmem=off -display none -m 2048 -serial mon:stdio -netdev user,id=unet,hostfwd=tcp::2222-:22 -device virtio-net-pci,netdev=unet -device virtio-scsi-pci -blockdev driver=raw,node-name=hd,discard=unmap,file.driver=host_device,file.filename=/dev/zen-disk/debian-bullseye-armhf -device scsi-hd,drive=hd -smp 4 -kernel /home/alex/lsrc/linux.git/builds/arm/arch/arm/boot/zImage -append 'console=ttyAMA0 root=/dev/sda2 systemd.unit=benchmark.service' -snapshot"
Benchmark 1: ./arm-softmmu/qemu-system-arm -cpu cortex-a15 -machine type=virt,highmem=off -display none -m 2048 -serial mon:stdio -netdev user,id=unet,hostfwd=tcp::2222-:22 -device virtio-net-pci,netdev=unet -device virtio-scsi-pci -blockdev driver=raw,node-name=hd,discard=unmap,file.driver=host_device,file.filename=/dev/zen-disk/debian-bullseye-armhf -device scsi-hd,drive=hd -smp 4 -kernel /home/alex/lsrc/linux.git/builds/arm/arch/arm/boot/zImage -append 'console=ttyAMA0 root=/dev/sda2 systemd.unit=benchmark.service' -snapshot
  Time (mean ± σ):     24.627 s ±  2.708 s    [User: 34.309 s, System: 1.797 s]
  Range (min … max):   22.345 s … 29.864 s    20 runs

arm64

➜  hyperfine -w 2 -n 20 "./qemu-system-aarch64 -cpu max,pauth-impdef=on -machine type=virt,virtualization=on,gic-version=3 -display none -serial mon:stdio -netdev user,id=unet,hostfwd=tcp::2222-:22,hostfwd=tcp::1234-:1234 -device virtio-net-pci,netdev=unet -device virtio-scsi-pci -blockdev driver=raw,node-name=hd,discard=unmap,file.driver=host_device,file.filename=/dev/zen-disk/debian-bullseye-arm64 -device scsi-hd,drive=hd -smp 4 -kernel ~/lsrc/linux.git/builds/arm64/arch/arm64/boot/Image.gz -append 'console=ttyAMA0 root=/dev/sda2 systemd.unit=benchmark-pigz.service' -snapshot"
Benchmark 1: 20
  Time (mean ± σ):     62.559 s ±  2.917 s    [User: 189.115 s, System: 4.089 s]
  Range (min … max):   59.997 s … 70.153 s    10 runs

After:

armhf

Benchmark 1: ./arm-softmmu/qemu-system-arm -cpu cortex-a15 -machine type=virt,highmem=off -display none -m 2048 -serial mon:stdio -netdev user,id=unet,hostfwd=tcp::2222-:22 -device virtio-net-pci,netdev=unet -device virtio-scsi-pci -blockdev driver=raw,node-name=hd,discard=unmap,file.driver=host_device,file.filename=/dev/zen-disk/debian-bullseye-armhf -device scsi-hd,drive=hd -smp 4 -kernel /home/alex/lsrc/linux.git/builds/arm/arch/arm/boot/zImage -append 'console=ttyAMA0 root=/dev/sda2 systemd.unit=benchmark.service' -snapshot
  Time (mean ± σ):     24.223 s ±  2.151 s    [User: 34.284 s, System: 1.906 s]
  Range (min … max):   22.000 s … 28.476 s    20 runs

arm64

hyperfine -w 2 -n 20 "./qemu-system-aarch64 -cpu max,pauth-impdef=on -machine type=virt,virtualization=on,gic-version=3 -display none -serial mon:stdio -netdev user,id=unet,hostfwd=tcp::2222-:22,hostfwd=tcp::1234-:1234 -device virtio-net-pci,netdev=unet -device virtio-scsi-pci -blockdev driver=raw,node-name=hd,discard=unmap,file.driver=host_device,file.filename=/dev/zen-disk/debian-bullseye-arm64 -device scsi-hd,drive=hd -smp 4 -kernel ~/lsrc/linux.git/builds/arm64/arch/arm64/boot/Image.gz -append 'console=ttyAMA0 root=/dev/sda2 systemd.unit=benchmark-pigz.service' -snapshot"
Benchmark 1: 20
  Time (mean ± σ):     62.769 s ±  1.978 s    [User: 188.431 s, System: 5.269 s]
  Range (min … max):   60.285 s … 66.868 s    10 runs

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230526165401.574474-12-alex.bennee@linaro.org
Message-Id: <20230524133952.3971948-11-alex.bennee@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-06-01 11:05:05 -04:00
..
aio-posix.c
aio: remove aio_disable_external() API
2023-05-30 17:37:26 +02:00
aio-posix.h
aio: remove aio_disable_external() API
2023-05-30 17:37:26 +02:00
aio-wait.c
aio-wait: avoid AioContext lock in aio_wait_bh_oneshot()
2023-05-10 14:15:13 +02:00
aio-win32.c
aio: remove aio_disable_external() API
2023-05-30 17:37:26 +02:00
aiocb.c
block: move AioContext, QEMUTimer, main-loop to libqemuutil
2017-02-21 11:14:07 +00:00
async-teardown.c
util/async-teardown: wire up query-command-line-options
2023-05-16 09:14:18 +02:00
async.c
aio: remove aio_disable_external() API
2023-05-30 17:37:26 +02:00
atomic64.c
osdep: Move memalign-related functions to their own header
2022-03-07 13:16:49 +00:00
base64.c
nomaintainer: Fix Lesser GPL version number
2020-11-15 17:04:40 +01:00
bitmap.c
migration: Use non-atomic ops for clear log bitmap
2022-11-21 11:58:10 +01:00
bitops.c
replace TABs with spaces
2023-03-20 12:43:50 +01:00
block-helpers.c
block: move logical block size check function to a common utility function
2020-10-23 13:42:16 +01:00
block-helpers.h
block: move logical block size check function to a common utility function
2020-10-23 13:42:16 +01:00
buffer.c
nomaintainer: Fix Lesser GPL version number
2020-11-15 17:04:40 +01:00
bufferiszero.c
util/bufferiszero: Use i386 host/cpuinfo.h
2023-05-23 16:51:13 -07:00
cacheflush.c
util/cacheflush: fix cache on windows-arm64
2023-02-21 08:53:03 -10:00
compatfd.c
util: replace pipe()+cloexec with g_unix_open_pipe()
2022-05-03 15:18:14 +04:00
coroutine-sigaltstack.c
Remove qemu-common.h include from most units
2022-04-06 14:31:55 +02:00
coroutine-ucontext.c
coroutine-ucontext: use QEMU_DEFINE_STATIC_CO_TLS()
2022-05-04 15:55:23 +02:00
coroutine-windows.c
build: move coroutine backend selection to meson
2023-05-18 08:53:52 +02:00
cpuinfo-aarch64.c
util: Add cpuinfo-aarch64.c
2023-05-23 16:51:18 -07:00
cpuinfo-i386.c
util: Add i386 CPUINFO_ATOMIC_VMOVDQU
2023-05-23 16:49:33 -07:00
crc32c.c
igb: Implement Rx SCTP CSO
2023-05-23 15:20:15 +08:00
crc-ccitt.c
util: Add CRC16 (CCITT) calculation routines
2021-01-24 20:10:54 +01:00
cutils.c
util: remove support for hex numbers with a scaling suffix
2023-01-06 00:51:02 +01:00
dbus.c
util: add dbus helper unit
2020-01-06 18:41:32 +04:00
drm.c
util/drm: make portable by avoiding struct dirent d_type
2020-07-13 14:36:10 +01:00
envlist.c
replace TABs with spaces
2023-03-20 12:43:50 +01:00
error-report.c
util/error: add G_GNUC_PRINTF for various functions
2023-01-11 10:44:34 +01:00
error.c
util/error: Fix use-after-free errors reported by Coverity
2023-04-06 12:38:42 -04:00
event_notifier-posix.c
Replace qemu_pipe() with g_unix_open_pipe()
2022-05-03 15:17:56 +04:00
event_notifier-win32.c
Remove qemu-common.h include from most units
2022-04-06 14:31:55 +02:00
fdmon-epoll.c
aio: remove aio_disable_external() API
2023-05-30 17:37:26 +02:00
fdmon-io_uring.c
aio: remove aio_disable_external() API
2023-05-30 17:37:26 +02:00
fdmon-poll.c
aio: remove aio_disable_external() API
2023-05-30 17:37:26 +02:00
fifo8.c
utils/fifo8: change fatal errors from abort() to assert()
2021-02-07 20:38:20 +00:00
filemonitor-inotify.c
nomaintainer: Fix Lesser GPL version number
2020-11-15 17:04:40 +01:00
filemonitor-stub.c
nomaintainer: Fix Lesser GPL version number
2020-11-15 17:04:40 +01:00
getauxval.c
util/getauxval: Porting to FreeBSD getauxval feature
2020-06-26 06:45:29 -04:00
guest-random.c
replay: Extract core API to 'exec/replay-core.h'
2023-02-27 22:29:01 +01:00
hbitmap.c
hbitmap: fix hbitmap_status() return value for first dirty bit case
2023-02-17 14:34:24 +01:00
hexdump.c
include: move C/util-related declarations to cutils.h
2022-04-06 14:31:43 +02:00
host-utils.c
host-utils: Implemented signed 256-by-128 division
2022-06-20 08:38:58 -03:00
id.c
net: Use id_generate() in the network subsystem, too
2021-03-09 21:47:45 +01:00
int128.c
include/qemu/int128: Use Int128 structure for TCI
2023-02-04 06:19:42 -10:00
interval-tree.c
util: Add interval-tree.c
2022-12-20 17:09:41 -08:00
iov.c
util: make do_send_recv work with partial send/recv
2022-10-12 19:22:01 +04:00
iova-tree.c
util: accept iova_tree_remove_parameter by value
2022-09-02 10:22:39 +08:00
keyval.c
include: add qemu/keyval.h
2022-04-21 17:03:51 +04:00
lockcnt.c
qemu/atomic.h: rename atomic_ to qatomic_
2020-09-23 16:07:44 +01:00
log.c
log: Remove unneeded new line
2023-03-08 00:37:48 +01:00
main-loop.c
aio: remove aio_disable_external() API
2023-05-30 17:37:26 +02:00
memalign.c
osdep: Move memalign-related functions to their own header
2022-03-07 13:16:49 +00:00
memfd.c
linux-user: add memfd_create
2019-09-11 08:46:17 +02:00
meson.build
util: Add cpuinfo-aarch64.c
2023-05-23 16:51:18 -07:00
mmap-alloc.c
util/mmap-alloc: qemu_fd_getfs()
2023-04-24 11:29:00 +02:00
module.c
module: add Error arguments to module_load and module_load_qom
2022-11-06 09:48:50 +01:00
notify.c
xen / notify: introduce a new XenWatchList abstraction
2019-09-24 12:18:47 +01:00
nvdimm-utils.c
Clean up includes
2020-12-10 17:16:44 +01:00
osdep.c
error handling: Use RETRY_ON_EINTR() macro where applicable
2023-01-09 13:50:47 +01:00
oslib-posix.c
util: drop qemu_fork()
2023-03-13 15:23:37 +04:00
oslib-win32.c
win32: wrap socket close() with an exception handler
2023-05-28 13:08:25 +04:00
path.c
util/path: Do not cache all filenames at startup
2019-06-24 22:19:30 +02:00
qdist.c
qdist: return "(empty)" instead of NULL when printing an empty dist
2016-08-03 18:44:56 +02:00
qemu-co-shared-resource.c
co-shared-resource: protect with a mutex
2021-06-25 14:24:24 +03:00
qemu-co-timeout.c
util: add qemu-co-timeout
2022-06-29 10:56:12 +03:00
qemu-config.c
error: Drop superfluous #include "qapi/qmp/qerror.h"
2023-02-23 13:56:14 +01:00
qemu-coroutine-io.c
aio: remove aio_disable_external() API
2023-05-30 17:37:26 +02:00
qemu-coroutine-lock.c
qemu-coroutine-lock: add smp_mb__after_rmw()
2023-03-07 12:39:53 +01:00
qemu-coroutine-sleep.c
coroutine: Clean up superfluous inclusion of qemu/coroutine.h
2023-01-19 10:18:28 +01:00
qemu-coroutine.c
qemu-coroutine: remove qatomic_mb_read()
2023-04-20 11:17:35 +02:00
qemu-option.c
qemu-option: Allow deleting opts during qemu_opts_foreach()
2021-10-15 16:11:22 +02:00
qemu-print.c
monitor: Use getter/setter functions for cur_mon
2020-10-09 07:08:19 +02:00
qemu-progress.c
include: move progress API to qemu-progress.h
2022-04-06 14:31:43 +02:00
qemu-sockets.c
win32: replace closesocket() with close() wrapper
2023-03-13 15:39:31 +04:00
qemu-thread-common.h
Clean up includes
2018-12-20 10:29:08 +01:00
qemu-thread-posix.c
qemu-thread-posix: cleanup, fix, document QemuEvent
2023-03-07 12:38:40 +01:00
qemu-thread-win32.c
qemu-thread-win32: cleanup, fix, document QemuEvent
2023-03-07 12:38:40 +01:00
qemu-timer-common.c
semihosting: Implement SYS_ELAPSED and SYS_TICKFREQ
2021-01-18 10:05:06 +00:00
qemu-timer.c
qemu-timer: Skip empty timer lists before locking in qemu_clock_deadline_ns_all
2022-06-21 09:24:34 -07:00
qht.c
util/qht: use striped locks under TSAN
2023-02-02 11:48:20 +00:00
qsp.c
accel/tcg: include cs_base in our hash calculations
2023-06-01 11:05:05 -04:00
qtree.c
tcg: use QTree instead of GTree
2023-03-28 15:23:10 -07:00
range.c
Don't talk about the LGPL if the file is licensed under the GPL
2019-01-30 10:51:20 +01:00
rcu.c
call_rcu: stop using mb_set/mb_read
2023-05-08 11:10:49 +02:00
readline.c
readline: Extract readline_add_completion_of() from monitor
2023-02-04 07:56:54 +01:00
selfmap.c
util/selfmap: Discard mapping on error
2021-07-26 07:06:49 -10:00
stats64.c
stat64: Add stat64_set() operation
2023-04-27 16:39:43 +02:00
sys_membarrier.c
sys_membarrier: fix up include directives
2018-04-05 14:37:38 +02:00
systemd.c
systemd: Also clear LISTEN_FDNAMES during systemd socket activation
2023-05-03 14:00:08 -05:00
thread-context.c
qapi: Use returned bool to check for failure (again)
2022-12-14 16:19:35 +01:00
thread-pool.c
thread-pool: avoid passing the pool parameter every time
2023-04-25 13:17:28 +02:00
throttle.c
Remove superfluous timer_del() calls
2021-01-08 15:13:38 +00:00
timed-average.c
Fix some typos found by codespell
2016-05-18 15:04:27 +03:00
trace-events
async: Add an optional reentrancy guard to the BH API
2023-04-28 11:31:07 +02:00
trace.h
trace: switch position of headers to what Meson requires
2020-08-21 06:18:24 -04:00
transactions.c
transactions: Invoke clean() after everything else
2021-11-16 09:43:44 +01:00
unicode.c
json: Reject invalid UTF-8 sequences
2018-08-24 20:26:37 +02:00
uri.c
Updated the FSF address to <https://www.gnu.org/licenses/>
2023-02-27 09:15:39 +01:00
userfaultfd.c
util/userfaultfd: Support /dev/userfaultfd
2023-02-11 16:51:09 +01:00
uuid.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
vfio-helpers.c
util/vfio-helpers: Use g_file_read_link()
2023-05-24 09:21:22 +02:00
vhost-user-server.c
aio: remove aio_disable_external() API
2023-05-30 17:37:26 +02:00
yank.c
yank: Remove dependency on qiochannel
2021-04-01 15:27:44 +04:00