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qemu/include/sysemu
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Stefano Garzarella 1793ad0247 iothread: add aio-max-batch parameter 
The `aio-max-batch` parameter will be propagated to AIO engines
and it will be used to control the maximum number of queued requests.

When there are in queue a number of requests equal to `aio-max-batch`,
the engine invokes the system call to forward the requests to the kernel.

This parameter allows us to control the maximum batch size to reduce
the latency that requests might accumulate while queued in the AIO
engine queue.

If `aio-max-batch` is equal to 0 (default value), the AIO engine will
use its default maximum batch size value.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20210721094211.69853-3-sgarzare@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2021-07-21 13:47:50 +01:00
..
accel-ops.h accel: replace struct CpusAccel with AccelOpsClass 2021-02-05 10:24:15 -10:00
arch_init.h Drop the deprecated unicore32 target 2021-05-12 18:20:52 +02:00
balloon.h qapi: Restrict balloon-related commands to machine code 2020-09-29 15:41:35 +02:00
block-backend.h block: add max_hw_transfer to BlockLimits 2021-06-25 10:54:13 +02:00
blockdev.h blockdev: Drop deprecated bogus -drive interface type 2021-03-19 15:18:43 +01:00
cpu-throttle.h cpu-throttle: new module, extracted from cpus.c 2020-07-10 18:04:49 -04:00
cpu-timers.h cpus: prepare new CpusAccel cpu accelerator interface 2020-10-05 16:41:22 +02:00
cpus.h sev/i386: Don't allow a system reset under an SEV-ES guest 2021-02-16 17:15:39 +01:00
cryptodev-vhost-user.h cryptodev: Fix Lesser GPL version number 2020-10-27 16:48:49 +01:00
cryptodev-vhost.h cryptodev: Fix Lesser GPL version number 2020-10-27 16:48:49 +01:00
cryptodev.h cryptodev: Fix Lesser GPL version number 2020-10-27 16:48:49 +01:00
device_tree.h device_tree: add qemu_fdt_setprop_string_array helper 2021-03-10 15:34:11 +00:00
dma.h dma: Introduce dma_aligned_pow2_mask() 2021-03-12 12:40:10 +00:00
dump-arch.h dump: allow target to set the physical base 2016-01-15 14:40:25 +00:00
dump.h qapi: Split dump.json off misc.json 2019-07-02 13:37:00 +02:00
hax.h include/sysemu: Poison all accelerator CONFIG switches in common code 2021-05-14 12:31:44 +02:00
hostmem.h hostmem: Wire up RAM_NORESERVE via "reserve" property 2021-06-15 20:27:38 +02:00
hvf_int.h hvf: Introduce hvf vcpu struct 2021-06-03 16:43:27 +01:00
hvf.h include/sysemu: Poison all accelerator CONFIG switches in common code 2021-05-14 12:31:44 +02:00
hw_accel.h Add NVMM accelerator: acceleration enlightenments 2021-05-04 14:15:34 +02:00
iothread.h iothread: add aio-max-batch parameter 2021-07-21 13:47:50 +01:00
kvm_int.h KVM: Cache kvm slot dirty bitmap size 2021-05-26 14:49:45 +02:00
kvm.h exec: Get rid of phys_mem_set_alloc() 2021-03-15 11:01:23 +01:00
memory_mapping.h Clean up inclusion of exec/cpu-common.h 2019-08-16 13:31:52 +02:00
numa.h numa: drop support for '-numa node' (without memory specified) 2020-09-30 19:09:20 +02:00
nvmm.h Add NVMM accelerator: acceleration enlightenments 2021-05-04 14:15:34 +02:00
os-posix.h osdep: Make os-win32.h and os-posix.h handle 'extern "C"' themselves 2021-05-10 17:21:54 +01:00
os-win32.h osdep: Make os-win32.h and os-posix.h handle 'extern "C"' themselves 2021-05-10 17:21:54 +01:00
qtest.h cpu-timers, icount: new modules 2020-10-05 16:41:22 +02:00
replay.h replay: fix icount request when replaying clock access 2021-02-16 17:15:39 +01:00
reset.h hw: move reset handlers from vl.c to hw/core 2017-01-16 17:52:35 +01:00
rng-random.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
rng.h qom: Remove module_obj_name parameter from OBJECT_DECLARE* macros 2020-09-18 14:12:32 -04:00
runstate-action.h vl: Add option to avoid stopping VM upon guest panic 2020-12-15 12:51:58 -05:00
runstate.h sysemu: Let VMChangeStateHandler take boolean 'running' argument 2021-03-09 23:13:57 +01:00
seccomp.h sandbox: disable -sandbox if CONFIG_SECCOMP undefined 2018-06-01 13:44:15 +02:00
sev.h sev/i386: Allow AP booting under SEV-ES 2021-02-16 17:15:39 +01:00
sysemu.h qmp: generalize watchdog-set-action to -no-reboot/-no-shutdown 2020-12-15 12:51:57 -05:00
tcg.h accel/tcg: Merge tcg_exec_init into tcg_init_machine 2021-06-11 09:26:28 -07:00
tpm_backend.h sysemu: Make TPM structures inaccessible if CONFIG_TPM is not defined 2021-06-15 10:55:12 -04:00
tpm_util.h tpm: Fix Lesser GPL version number 2020-11-15 16:44:18 +01:00
tpm.h sysemu: Make TPM structures inaccessible if CONFIG_TPM is not defined 2021-06-15 10:55:12 -04:00
vhost-user-backend.h qom: Remove module_obj_name parameter from OBJECT_DECLARE* macros 2020-09-18 14:12:32 -04:00
watchdog.h Include less of the generated modular QAPI headers 2018-03-02 13:45:50 -06:00
whpx.h include/sysemu: Poison all accelerator CONFIG switches in common code 2021-05-14 12:31:44 +02:00
xen-mapcache.h include: Make headers more self-contained 2019-08-16 13:31:51 +02:00
xen.h sysemu/xen: Add missing 'exec/cpu-common.h' header for ram_addr_t type 2020-09-30 19:11:36 +02:00