Sorry for late reply,
> I am afraid no. .config is generated during building time. So can you
> paste here please.
".config" file is in attachment.
I also tried Xen 4.9 and I got almost same numbers, jitter is smaller
by 150ns which isn't significant change at all.
Milan
#
# Automatically generated file; DO NOT EDIT.
# Xen/arm 4.11.1-pre Configuration
#
CONFIG_64BIT=y
CONFIG_ARM_64=y
CONFIG_ARM=y
CONFIG_ARCH_DEFCONFIG="arch/arm/configs/arm64_defconfig"
#
# Architecture Features
#
CONFIG_NR_CPUS=128
# CONFIG_ACPI is not set
CONFIG_GICV3=y
# CONFIG_HAS_ITS is not set
# CONFIG_NEW_VGIC is not set
CONFIG_SBSA_VUART_CONSOLE=y
#
# ARM errata workaround via the alternative framework
#
CONFIG_ARM64_ERRATUM_827319=y
CONFIG_ARM64_ERRATUM_824069=y
CONFIG_ARM64_ERRATUM_819472=y
CONFIG_ARM64_ERRATUM_832075=y
CONFIG_ARM64_ERRATUM_834220=y
CONFIG_HARDEN_BRANCH_PREDICTOR=y
CONFIG_ARM64_HARDEN_BRANCH_PREDICTOR=y
CONFIG_ALL_PLAT=y
# CONFIG_QEMU is not set
# CONFIG_RCAR3 is not set
# CONFIG_MPSOC is not set
CONFIG_ALL64_PLAT=y
# CONFIG_ALL32_PLAT is not set
CONFIG_MPSOC_PLATFORM=y
#
# Common Features
#
CONFIG_HAS_ALTERNATIVE=y
CONFIG_HAS_DEVICE_TREE=y
# CONFIG_MEM_ACCESS is not set
CONFIG_HAS_PDX=y
CONFIG_TMEM=y
# CONFIG_XSM is not set
#
# Schedulers
#
CONFIG_SCHED_CREDIT=y
CONFIG_SCHED_CREDIT2=y
CONFIG_SCHED_RTDS=y
# CONFIG_SCHED_ARINC653 is not set
CONFIG_SCHED_NULL=y
CONFIG_SCHED_CREDIT_DEFAULT=y
# CONFIG_SCHED_CREDIT2_DEFAULT is not set
# CONFIG_SCHED_RTDS_DEFAULT is not set
# CONFIG_SCHED_NULL_DEFAULT is not set
CONFIG_SCHED_DEFAULT="credit"
# CONFIG_LIVEPATCH is not set
CONFIG_SUPPRESS_DUPLICATE_SYMBOL_WARNINGS=y
CONFIG_CMDLINE=""
#
# Device Drivers
#
CONFIG_HAS_NS16550=y
CONFIG_HAS_CADENCE_UART=y
CONFIG_HAS_MVEBU=y
CONFIG_HAS_PL011=y
CONFIG_HAS_SCIF=y
CONFIG_HAS_PASSTHROUGH=y
CONFIG_ARM_SMMU=y
CONFIG_VIDEO=y
CONFIG_HAS_ARM_HDLCD=y
CONFIG_DEFCONFIG_LIST="$ARCH_DEFCONFIG"
#
# Debugging Options
#
# CONFIG_DEBUG is not set
# CONFIG_FRAME_POINTER is not set
# CONFIG_COVERAGE is not set
# CONFIG_LOCK_PROFILE is not set
# CONFIG_PERF_COUNTERS is not set
# CONFIG_VERBOSE_DEBUG is not set
# CONFIG_DEVICE_TREE_DEBUG is not set
# CONFIG_SCRUB_DEBUG is not set
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