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zhenwei pi 74c025c5d7 virtio_balloon: introduce memory scan/reclaim info 
Expose memory scan/reclaim information to the host side via virtio
balloon device.

Now we have a metric to analyze the memory performance:

y: counter increases
n: counter does not changes
h: the rate of counter change is high
l: the rate of counter change is low

OOM: VIRTIO_BALLOON_S_OOM_KILL
STALL: VIRTIO_BALLOON_S_ALLOC_STALL
ASCAN: VIRTIO_BALLOON_S_SCAN_ASYNC
DSCAN: VIRTIO_BALLOON_S_SCAN_DIRECT
ARCLM: VIRTIO_BALLOON_S_RECLAIM_ASYNC
DRCLM: VIRTIO_BALLOON_S_RECLAIM_DIRECT

- OOM[y], STALL[*], ASCAN[*], DSCAN[*], ARCLM[*], DRCLM[*]:
  the guest runs under really critial memory pressure

- OOM[n], STALL[h], ASCAN[*], DSCAN[l], ARCLM[*], DRCLM[l]:
  the memory allocation stalls due to cgroup, not the global memory
  pressure.

- OOM[n], STALL[h], ASCAN[*], DSCAN[h], ARCLM[*], DRCLM[h]:
  the memory allocation stalls due to global memory pressure. The
  performance gets hurt a lot. A high ratio between DRCLM/DSCAN shows
  quite effective memory reclaiming.

- OOM[n], STALL[h], ASCAN[*], DSCAN[h], ARCLM[*], DRCLM[l]:
  the memory allocation stalls due to global memory pressure.
  the ratio between DRCLM/DSCAN gets low, the guest OS is thrashing
  heavily, the serious case leads poor performance and difficult
  trouble shooting. Ex, sshd may block on memory allocation when
  accepting new connections, a user can't login a VM by ssh command.

- OOM[n], STALL[n], ASCAN[h], DSCAN[n], ARCLM[l], DRCLM[n]:
  the low ratio between ARCLM/ASCAN shows that the guest tries to
  reclaim more memory, but it can't. Once more memory is required in
  future, it will struggle to reclaim memory.

Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20240423034109.1552866-5-pizhenwei@bytedance.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-09-10 02:51:48 -04:00
..
accel
accessibility treewide: remove unnecessary <linux/version.h> inclusion 2024-08-12 18:36:44 +09:00
acpi ACPI: video: Add backlight=native quirk for Dell OptiPlex 7760 AIO 2024-08-19 15:58:52 +02:00
amba driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
android binder_alloc: Fix sleeping function called from invalid context 2024-07-31 13:48:25 +02:00
ata ata: pata_macio: Use WARN instead of BUG 2024-08-21 14:33:23 +09:00
atm atm: idt77252: prevent use after free in dequeue_rx() 2024-08-12 10:41:44 +01:00
auxdisplay auxdisplay updates for v6.11 2024-07-26 11:04:28 -07:00
base driver core: Fix uevent_show() vs driver detach race 2024-07-31 14:41:44 +02:00
bcma driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
block block-6.11-20240726 2024-07-27 15:28:53 -07:00
bluetooth Bluetooth: btnxpuart: Fix random crash seen while removing driver 2024-08-23 15:56:04 -04:00
bus Devicetree fixes for 6.11, part 1 2024-07-27 12:46:16 -07:00
cache cache: StarFive: Require a 64-bit system 2024-08-01 07:15:02 -07:00
cdrom sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
cdx driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
char tpm: ibmvtpm: Call tpm2_sessions_init() to initialize session support 2024-08-27 21:11:44 +03:00
clk clk: thead: fix dependency on clk_ignore_unused 2024-07-31 14:51:47 -07:00
clocksource of: remove internal arguments from of_property_for_each_u32() 2024-07-25 06:53:47 -05:00
comedi
connector
counter Char/Misc and other driver changes for 6.11-rc1 2024-07-19 15:55:08 -07:00
cpufreq cpufreq/amd-pstate-ut: Don't check for highest perf matching on prefcore 2024-08-23 11:07:58 -05:00
cpuidle cpuidle: teo: Don't count non-existent intercepts 2024-07-01 18:58:55 +02:00
crypto ARM: 2024-07-20 12:41:03 -07:00
cxl cxl/pci: Get AER capability address from RCRB only for RCH dport 2024-08-09 15:13:07 -07:00
dax Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
dca Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
devfreq
dio dio: Have dio_bus_match() callback take a const * 2024-07-10 15:38:14 +02:00
dma dmaengine: dw-edma: Do not enable watermark interrupts for HDMA 2024-08-28 18:40:17 +05:30
dma-buf - 875fa64577da ("mm/hugetlb_vmemmap: fix race with speculative PFN 2024-07-21 17:15:46 -07:00
dpll
edac minmax: make generic MIN() and MAX() macros available everywhere 2024-07-28 15:49:18 -07:00
eisa driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
extcon
firewire Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
firmware ARM: SoC fixes for 6.11, part 2 2024-09-01 06:42:13 +12:00
fpga Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
fsi fsi: add missing MODULE_DESCRIPTION() macros 2024-07-31 13:40:00 +02:00
gnss
gpio gpio: mlxbf3: Support shutdown() function 2024-08-10 21:35:16 +02:00
gpu A revert for a previous TTM commit causing stuttering, 3 fixes for 2024-08-30 11:28:11 +10:00
greybus Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
hid hid-for-linus-2024081901 2024-08-19 11:02:13 -07:00
hsi Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
hte
hv Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
hwmon hwmon: (pt5161l) Fix invalid temperature reading 2024-08-26 20:58:05 -07:00
hwspinlock
hwtracing Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
i2c i2c: tegra: Do not mark ACPI devices as irq safe 2024-08-15 00:22:28 +02:00
i3c I3C for 6.11 2024-07-27 10:53:06 -07:00
idle
iio of: remove internal arguments from of_property_for_each_u32() 2024-07-25 06:53:47 -05:00
infiniband IOMMU Updates for Linux v6.11 2024-07-19 09:59:58 -07:00
input Input updates for v6.11-rc5 2024-08-31 15:32:38 +12:00
interconnect Char/Misc and other driver changes for 6.11-rc1 2024-07-19 15:55:08 -07:00
iommu IOMMU Fixes for Linux v6.11-rc5 2024-08-31 06:11:34 +12:00
ipack driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
irqchip irqchip/riscv-aplic: Retrigger MSI interrupt on source configuration 2024-08-10 10:42:04 +02:00
isdn mISDN: Fix a use after free in hfcmulti_tx() 2024-07-25 08:05:05 -07:00
leds - Core Frameworks 2024-07-17 17:51:30 -07:00
macintosh sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-25 12:58:36 -07:00
mailbox mailbox: mtk-cmdq: Move devm_mbox_controller_register() after devm_pm_runtime_enable() 2024-07-19 21:25:23 -05:00
mcb Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
md block-6.11-20240824 2024-08-16 14:03:31 -07:00
media media fixes for v6.11-rc4 2024-08-15 10:23:19 -07:00
memory
memstick Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
message
mfd Devicetree fixes for 6.11, part 1 2024-07-27 12:46:16 -07:00
misc Char/Misc fixes for 6.11-rc4 2024-08-18 10:16:34 -07:00
mmc mmc: mmc_test: Fix NULL dereference on allocation failure 2024-08-20 13:47:36 +02:00
most Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
mtd This pull request contains updates (actually, just fixes) for UBI and UBIFS: 2024-07-28 11:51:51 -07:00
mux
net Regressions: 2024-08-28 16:54:45 -07:00
nfc nfc: pn533: Add poll mod list filling check 2024-08-29 12:08:44 +02:00
ntb Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
nubus
nvdimm virtio_pmem: Check device status before requesting flush 2024-09-10 02:51:47 -04:00
nvme nvme: Remove unused field 2024-08-22 13:28:40 -07:00
nvmem Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
of A revert for a previous TTM commit causing stuttering, 3 fixes for 2024-08-30 11:28:11 +10:00
opp Merge branches 'pm-opp' and 'pm-tools' 2024-07-15 18:55:14 +02:00
parisc
parport sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-25 12:58:36 -07:00
pci pci-v6.11-fixes-2 2024-08-31 14:54:11 +12:00
pcmcia Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
peci Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
perf perf: riscv: Fix selecting counters in legacy mode 2024-08-01 07:15:13 -07:00
phy phy: xilinx: phy-zynqmp: Fix SGMII linkup failure on resume 2024-08-05 21:46:58 +05:30
pinctrl pinctrl: rockchip: correct RK3328 iomux width flag for GPIO2-B pins 2024-08-24 16:39:51 +02:00
platform platform-drivers-x86 for v6.11-5 2024-08-29 07:12:02 +12:00
pmdomain pmdomain: imx: wait SSAR when i.MX93 power domain on 2024-08-15 12:47:09 +02:00
pnp driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
power power sequencing fixes for v6.11-rc6 2024-09-01 09:07:44 +12:00
powercap
pps Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
ps3
ptp Networking changes for 6.11. Not much excitement - a handful of large 2024-07-16 19:28:34 -07:00
pwm of: remove internal arguments from of_property_for_each_u32() 2024-07-25 06:53:47 -05:00
rapidio driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
ras - The AMD memory controllers data fabric version 4.5 supports 2024-07-15 18:20:24 -07:00
regulator regulator: Fixes for v6.11 2024-07-27 12:27:52 -07:00
remoteproc rpmsg updates for v6.11 2024-07-23 13:41:59 -07:00
reset Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
rpmsg Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
rtc rtc: stm32: add new st,stm32mp25-rtc compatible and check RIF configuration 2024-07-10 17:15:33 +02:00
s390 s390 updates for 6.11-rc5 2024-08-25 12:05:23 +12:00
sbus sbus: add missing MODULE_DESCRIPTION() macros 2024-07-11 15:42:03 +02:00
scsi SCSI fixes on 20240831 2024-09-01 07:00:38 +12:00
sh driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
siox Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
slimbus Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
soc Qualcomm driver fixes for v6.11 2024-08-28 20:27:39 +00:00
soundwire soundwire: stream: fix programming slave ports for non-continous port maps 2024-08-17 22:55:05 +05:30
spi spi: pxa2xx: Move PM runtime handling to the glue drivers 2024-08-22 13:34:06 +01:00
spmi spmi: pmic-arb: add missing newline in dev_err format strings 2024-07-31 13:49:28 +02:00
ssb driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
staging Kbuild fixes for v6.11 (2nd) 2024-08-23 07:43:15 +08:00
target
tc driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
tee Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
thermal thermal: of: Fix OF node leak in of_thermal_zone_find() error paths 2024-08-22 20:58:49 +02:00
thunderbolt thunderbolt: Mark XDomain as unplugged when router is removed 2024-08-06 08:01:10 +03:00
tty Revert "serial: 8250_omap: Set the console genpd always on if no console suspend" 2024-08-15 07:22:10 +02:00
ufs scsi: ufs: qcom: Add UFSHCD_QUIRK_BROKEN_LSDBS_CAP for SM8550 SoC 2024-08-16 21:09:17 -04:00
uio
usb USB fixes for 6.11-rc6 2024-09-01 07:06:28 +12:00
vdpa vdpa/mlx5: Fix invalid mr resource destroy 2024-09-10 02:51:47 -04:00
vfio Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
vhost vhost_vdpa: assign irq bypass producer token correctly 2024-09-10 02:51:47 -04:00
video video/aperture: optionally match the device in sysfb_disable() 2024-08-26 19:14:48 -04:00
virt ARM: 2024-07-20 12:41:03 -07:00
virtio virtio_balloon: introduce memory scan/reclaim info 2024-09-10 02:51:48 -04:00
w1
watchdog linux-watchdog 6.11-rc1 tag 2024-07-25 10:18:35 -07:00
xen Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
zorro Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
Kconfig
Makefile