Open11
try delay accounting
KumassyAWS に Ubuntu VM をたてて delay accounting https://docs.kernel.org/accounting/delay-accounting.html を試してみる
Kumassy
を参考に source code をダウンロードする
delay accounting は有効化されている
ubuntu@kumachine-cloud:~$ cat /boot/config-6.2.0-1012-aws | grep -E "DELAY_ACCT|TASKSTATS"
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
ubuntu@kumachine-cloud:~$ sudo apt-get source linux-image-$(uname -r)
Reading package lists... Done
E: You must put some 'deb-src' URIs in your sources.list
deb-src を有効化する
ubuntu@kumachine-cloud:~$ sudo vim /etc/apt/sources.list
ubuntu@kumachine-cloud:~$ sudo cat /etc/apt/sources.list
## Note, this file is written by cloud-init on first boot of an instance
## modifications made here will not survive a re-bundle.
## if you wish to make changes you can:
## a.) add 'apt_preserve_sources_list: true' to /etc/cloud/cloud.cfg
## or do the same in user-data
## b.) add sources in /etc/apt/sources.list.d
## c.) make changes to template file /etc/cloud/templates/sources.list.tmpl
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy main restricted
deb-src http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy main restricted
# ↑編集
## Major bug fix updates produced after the final release of the
## distribution.
deb http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy-updates main restricted
deb-src http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy-updates main restricted
# ↑編集
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy universe
# deb-src http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy universe
deb http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy-updates universe
# deb-src http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy multiverse
# deb-src http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy multiverse
deb http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy-updates multiverse
# deb-src http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy-backports main restricted universe multiverse
# deb-src http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports/ jammy-backports main restricted universe multiverse
deb http://ports.ubuntu.com/ubuntu-ports jammy-security main restricted
# deb-src http://ports.ubuntu.com/ubuntu-ports jammy-security main restricted
deb http://ports.ubuntu.com/ubuntu-ports jammy-security universe
# deb-src http://ports.ubuntu.com/ubuntu-ports jammy-security universe
deb http://ports.ubuntu.com/ubuntu-ports jammy-security multiverse
# deb-src http://ports.ubuntu.com/ubuntu-ports jammy-security multiverse
ubuntu@kumachine-cloud:~$ sudo apt update
Hit:1 http://ports.ubuntu.com/ubuntu-ports jammy-security InRelease
Hit:2 http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports jammy InRelease
Hit:3 http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports jammy-updates InRelease
Hit:4 http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports jammy-backports InRelease
Get:5 http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports jammy-updates/restricted Sources [49.7 kB]
Get:6 http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports jammy-updates/main Sources [448 kB]
Fetched 498 kB in 3s (195 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
49 packages can be upgraded. Run 'apt list --upgradable' to see them.
なんかエラーが出た
ubuntu@kumachine-cloud:~$ sudo apt-get source linux-image-$(uname -r)
Reading package lists... Done
Picking 'linux-signed-aws-6.2' as source package instead of 'linux-image-6.2.0-1012-aws'
Need to get 15.5 kB of source archives.
Get:1 http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports jammy-updates/main linux-signed-aws-6.2 6.2.0-1015.15~22.04.1 (dsc) [1962 B]
Get:2 http://ap-northeast-1a.clouds.ports.ubuntu.com/ubuntu-ports jammy-updates/main linux-signed-aws-6.2 6.2.0-1015.15~22.04.1 (tar) [13.6 kB]
Fetched 15.5 kB in 1s (21.3 kB/s)
sh: 1: dpkg-source: not found
W: Download is performed unsandboxed as root as file 'linux-signed-aws-6.2_6.2.0-1015.15~22.04.1.dsc' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
E: Unpack command 'dpkg-source --no-check -x linux-signed-aws-6.2_6.2.0-1015.15~22.04.1.dsc' failed.
N: Check if the 'dpkg-dev' package is installed.
必要なパッケージをインストールする
ubuntu@kumachine-cloud:~$ sudo apt install -y dpkg-dev
ubuntu@kumachine-cloud:~$ sudo apt-get source linux-image-$(uname -r)
Reading package lists... Done
Picking 'linux-signed-aws-6.2' as source package instead of 'linux-image-6.2.0-1012-aws'
Skipping already downloaded file 'linux-signed-aws-6.2_6.2.0-1015.15~22.04.1.dsc'
Skipping already downloaded file 'linux-signed-aws-6.2_6.2.0-1015.15~22.04.1.tar.xz'
Need to get 0 B of source archives.
dpkg-source: info: extracting linux-signed-aws-6.2 in linux-signed-aws-6.2-6.2.0
dpkg-source: info: unpacking linux-signed-aws-6.2_6.2.0-1015.15~22.04.1.tar.xz
ubuntu@kumachine-cloud:~$ ls
linux-signed-aws-6.2-6.2.0 linux-signed-aws-6.2_6.2.0-1015.15~22.04.1.dsc linux-signed-aws-6.2_6.2.0-1015.15~22.04.1.tar.xz
ダウンロードできたが、中身をみてもソースコードっぽいファイルは見当たらない
Kumassyhttps://wiki.ubuntu.com/Kernel/BuildYourOwnKernel をみてソースコードをダウンロードする
ubuntu@kumachine-cloud:~$ apt-get source linux-image-unsigned-$(uname -r)
Reading package lists... Done
Picking 'linux-aws-6.2' as source package instead of 'linux-image-unsigned-6.2.0-1012-aws'
NOTICE: 'linux-aws-6.2' packaging is maintained in the 'Git' version control system at:
git://git.launchpad.net/~canonical-kernel/ubuntu/+source/linux-aws/+git/jammy
Please use:
git clone git://git.launchpad.net/~canonical-kernel/ubuntu/+source/linux-aws/+git/jammy
to retrieve the latest (possibly unreleased) updates to the package.
Need to get 227 MB of source archives.
ubuntu@kumachine-cloud:~$ ls
linux-aws-6.2-6.2.0 linux-aws-6.2_6.2.0-1015.15~22.04.1.diff.gz linux-aws-6.2_6.2.0-1015.15~22.04.1.dsc linux-aws-6.2_6.2.0.orig.tar.gz
ダウンロードできたっぽい
Kumassyただし、ビルドに失敗してしまう
ubuntu@kumachine-cloud:~$ sudo make -C linux-aws-6.2-6.2.0/tools/accounting/
make: Entering directory '/home/ubuntu/linux-aws-6.2-6.2.0/tools/accounting'
gcc -I../../usr/include getdelays.c -o getdelays
getdelays.c: In function ‘print_delayacct’:
getdelays.c:236:39: error: ‘struct taskstats’ has no member named ‘compact_count’; did you mean ‘cpu_count’?
236 | (unsigned long long)t->compact_count,
| ^~~~~~~~~~~~~
| cpu_count
getdelays.c:237:39: error: ‘struct taskstats’ has no member named ‘compact_delay_total’; did you mean ‘cpu_delay_total’?
237 | (unsigned long long)t->compact_delay_total,
| ^~~~~~~~~~~~~~~~~~~
| cpu_delay_total
getdelays.c:238:30: error: ‘struct taskstats’ has no member named ‘compact_delay_total’; did you mean ‘cpu_delay_total’?
238 | average_ms(t->compact_delay_total, t->compact_count),
| ^~~~~~~~~~~~~~~~~~~
getdelays.c:194:27: note: in definition of macro ‘average_ms’
194 | #define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
| ^
getdelays.c:238:54: error: ‘struct taskstats’ has no member named ‘compact_count’; did you mean ‘cpu_count’?
238 | average_ms(t->compact_delay_total, t->compact_count),
| ^~~~~~~~~~~~~
getdelays.c:194:45: note: in definition of macro ‘average_ms’
194 | #define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
| ^
getdelays.c:238:54: error: ‘struct taskstats’ has no member named ‘compact_count’; did you mean ‘cpu_count’?
238 | average_ms(t->compact_delay_total, t->compact_count),
| ^~~~~~~~~~~~~
getdelays.c:194:49: note: in definition of macro ‘average_ms’
194 | #define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
| ^
getdelays.c:240:39: error: ‘struct taskstats’ has no member named ‘wpcopy_count’; did you mean ‘cpu_count’?
240 | (unsigned long long)t->wpcopy_count,
| ^~~~~~~~~~~~
| cpu_count
getdelays.c:241:39: error: ‘struct taskstats’ has no member named ‘wpcopy_delay_total’; did you mean ‘cpu_delay_total’?
241 | (unsigned long long)t->wpcopy_delay_total,
| ^~~~~~~~~~~~~~~~~~
| cpu_delay_total
getdelays.c:242:30: error: ‘struct taskstats’ has no member named ‘wpcopy_delay_total’; did you mean ‘cpu_delay_total’?
242 | average_ms(t->wpcopy_delay_total, t->wpcopy_count));
| ^~~~~~~~~~~~~~~~~~
getdelays.c:194:27: note: in definition of macro ‘average_ms’
194 | #define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
| ^
getdelays.c:242:53: error: ‘struct taskstats’ has no member named ‘wpcopy_count’; did you mean ‘cpu_count’?
242 | average_ms(t->wpcopy_delay_total, t->wpcopy_count));
| ^~~~~~~~~~~~
getdelays.c:194:45: note: in definition of macro ‘average_ms’
194 | #define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
| ^
getdelays.c:242:53: error: ‘struct taskstats’ has no member named ‘wpcopy_count’; did you mean ‘cpu_count’?
242 | average_ms(t->wpcopy_delay_total, t->wpcopy_count));
| ^~~~~~~~~~~~
getdelays.c:194:49: note: in definition of macro ‘average_ms’
194 | #define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
| ^
make: *** [<builtin>: getdelays] Error 1
make: Leaving directory '/home/ubuntu/linux-aws-6.2-6.2.0/tools/accounting'
https://docs.kernel.org/accounting/delay-accounting.html#usage をみると
Delay accounting is disabled by default at boot up. To enable, add:
delayacct
to the kernel boot options.
とある。一方で
ubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0/tools/accounting$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-6.2.0-1012-aws root=PARTUUID=69e1997e-a903-4643-a4fa-491f49342e1c ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1
となっていて delayacct がついていなさそう
Kumassy
を参考に delayacct つきで起動する
ubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0/tools/accounting$ sudo vim /etc/default/grub
ubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0/tools/accounting$ sudo cat /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash delayacct" # ここを編集
GRUB_CMDLINE_LINUX=""
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
# Uncomment to disable graphical terminal (grub-pc only)
GRUB_TERMINAL=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
ubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0/tools/accounting$ sudo update-grub2
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/40-force-partuuid.cfg'
Sourcing file `/etc/default/grub.d/50-cloudimg-settings.cfg'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
GRUB_FORCE_PARTUUID is set, will attempt initrdless boot
Found linux image: /boot/vmlinuz-6.2.0-1012-aws
Found initrd image: /boot/initrd.img-6.2.0-1012-aws
Warning: os-prober will not be executed to detect other bootable partitions.
Systems on them will not be added to the GRUB boot configuration.
Check GRUB_DISABLE_OS_PROBER documentation entry.
Adding boot menu entry for UEFI Firmware Settings ...
done
reboot
あれーかわってない？
ubuntu@kumachine-cloud:~$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-6.2.0-1012-aws root=PARTUUID=69e1997e-a903-4643-a4fa-491f49342e1c ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 panic=-1
ubuntu@kumachine-cloud:~$ cat /boot/grub/grub.cfg | grep delay
ここで上書きされてた
ubuntu@kumachine-cloud:~$ cat /etc/default/grub.d/50-cloudimg-settings.cfg
# Cloud Image specific Grub settings for Generic Cloud Images
# CLOUD_IMG: This file was created/modified by the Cloud Image build process
# Set the recordfail timeout
GRUB_RECORDFAIL_TIMEOUT=0
# Do not wait on grub prompt
GRUB_TIMEOUT=0
# Set the default commandline
GRUB_CMDLINE_LINUX_DEFAULT="console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295"
# Set the grub console type
GRUB_TERMINAL=console
GRUB_HIDDEN_TIMEOUT=0.1
編集する
ubuntu@kumachine-cloud:~$ sudo vim /etc/default/grub.d/50-cloudimg-settings.cfg
ubuntu@kumachine-cloud:~$ sudo cat /etc/default/grub.d/50-cloudimg-settings.cfg
# Cloud Image specific Grub settings for Generic Cloud Images
# CLOUD_IMG: This file was created/modified by the Cloud Image build process
# Set the recordfail timeout
GRUB_RECORDFAIL_TIMEOUT=0
# Do not wait on grub prompt
GRUB_TIMEOUT=0
# Set the default commandline
GRUB_CMDLINE_LINUX_DEFAULT="console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 delayacct"
# Set the grub console type
GRUB_TERMINAL=console
GRUB_HIDDEN_TIMEOUT=0.1
ubuntu@kumachine-cloud:~$ sudo update-grub2
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/40-force-partuuid.cfg'
Sourcing file `/etc/default/grub.d/50-cloudimg-settings.cfg'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
GRUB_FORCE_PARTUUID is set, will attempt initrdless boot
Found linux image: /boot/vmlinuz-6.2.0-1012-aws
Found initrd image: /boot/initrd.img-6.2.0-1012-aws
Warning: os-prober will not be executed to detect other bootable partitions.
Systems on them will not be added to the GRUB boot configuration.
Check GRUB_DISABLE_OS_PROBER documentation entry.
Adding boot menu entry for UEFI Firmware Settings ...
done
よさそう
ubuntu@kumachine-cloud:~$ cat /boot/grub/grub.cfg | grep 'delay'
linux /boot/vmlinuz-6.2.0-1012-aws root=PARTUUID=69e1997e-a903-4643-a4fa-491f49342e1c ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 delayacct
linux /boot/vmlinuz-6.2.0-1012-aws root=PARTUUID=69e1997e-a903-4643-a4fa-491f49342e1c ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 delayacct panic=-1
linux /boot/vmlinuz-6.2.0-1012-aws root=PARTUUID=69e1997e-a903-4643-a4fa-491f49342e1c ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 delayacct
linux /boot/vmlinuz-6.2.0-1012-aws root=PARTUUID=69e1997e-a903-4643-a4fa-491f49342e1c ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 delayacct panic=-1
reboot
たしかに delayacct パラメータ付きでカーネルを起動できた
ubuntu@kumachine-cloud:~$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-6.2.0-1012-aws root=PARTUUID=69e1997e-a903-4643-a4fa-491f49342e1c ro console=tty1 console=ttyS0 nvme_core.io_timeout=4294967295 delayacct panic=-1
ubuntu@kumachine-cloud:~$
ただしコンパイルは通らない
ubuntu@kumachine-cloud:~$ sudo make -C linux-aws-6.2-6.2.0/tools/accounting/
make: Entering directory '/home/ubuntu/linux-aws-6.2-6.2.0/tools/accounting'
gcc -I../../usr/include getdelays.c -o getdelays
getdelays.c: In function ‘print_delayacct’:
getdelays.c:236:39: error: ‘struct taskstats’ has no member named ‘compact_count’; did you mean ‘cpu_count’?
236 | (unsigned long long)t->compact_count,
| ^~~~~~~~~~~~~
| cpu_count
getdelays.c:237:39: error: ‘struct taskstats’ has no member named ‘compact_delay_total’; did you mean ‘cpu_delay_total’?
237 | (unsigned long long)t->compact_delay_total,
| ^~~~~~~~~~~~~~~~~~~
| cpu_delay_total
getdelays.c:238:30: error: ‘struct taskstats’ has no member named ‘compact_delay_total’; did you mean ‘cpu_delay_total’?
238 | average_ms(t->compact_delay_total, t->compact_count),
| ^~~~~~~~~~~~~~~~~~~
getdelays.c:194:27: note: in definition of macro ‘average_ms’
194 | #define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
| ^
getdelays.c:238:54: error: ‘struct taskstats’ has no member named ‘compact_count’; did you mean ‘cpu_count’?
238 | average_ms(t->compact_delay_total, t->compact_count),
| ^~~~~~~~~~~~~
getdelays.c:194:45: note: in definition of macro ‘average_ms’
194 | #define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
| ^
getdelays.c:238:54: error: ‘struct taskstats’ has no member named ‘compact_count’; did you mean ‘cpu_count’?
238 | average_ms(t->compact_delay_total, t->compact_count),
| ^~~~~~~~~~~~~
getdelays.c:194:49: note: in definition of macro ‘average_ms’
194 | #define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
| ^
getdelays.c:240:39: error: ‘struct taskstats’ has no member named ‘wpcopy_count’; did you mean ‘cpu_count’?
240 | (unsigned long long)t->wpcopy_count,
| ^~~~~~~~~~~~
| cpu_count
getdelays.c:241:39: error: ‘struct taskstats’ has no member named ‘wpcopy_delay_total’; did you mean ‘cpu_delay_total’?
241 | (unsigned long long)t->wpcopy_delay_total,
| ^~~~~~~~~~~~~~~~~~
| cpu_delay_total
getdelays.c:242:30: error: ‘struct taskstats’ has no member named ‘wpcopy_delay_total’; did you mean ‘cpu_delay_total’?
242 | average_ms(t->wpcopy_delay_total, t->wpcopy_count));
| ^~~~~~~~~~~~~~~~~~
getdelays.c:194:27: note: in definition of macro ‘average_ms’
194 | #define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
| ^
getdelays.c:242:53: error: ‘struct taskstats’ has no member named ‘wpcopy_count’; did you mean ‘cpu_count’?
242 | average_ms(t->wpcopy_delay_total, t->wpcopy_count));
| ^~~~~~~~~~~~
getdelays.c:194:45: note: in definition of macro ‘average_ms’
194 | #define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
| ^
getdelays.c:242:53: error: ‘struct taskstats’ has no member named ‘wpcopy_count’; did you mean ‘cpu_count’?
242 | average_ms(t->wpcopy_delay_total, t->wpcopy_count));
| ^~~~~~~~~~~~
getdelays.c:194:49: note: in definition of macro ‘average_ms’
194 | #define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
| ^
make: *** [<builtin>: getdelays] Error 1
make: Leaving directory '/home/ubuntu/linux-aws-6.2-6.2.0/tools/accounting'
```****
source code をみると、 taskstats はここで定義されている
#define TASKSTATS_HAS_IO_ACCOUNTING
が有効化されてないとコンパイルできない？
Kumassyubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0/tools/accounting$ gcc -I../../usr/include getdelays.c -E
で preprocess 後のコードをみる
# 41 "/usr/include/linux/taskstats.h" 3 4
struct taskstats {
__u64 nvcsw;
__u64 nivcsw;
__u64 ac_utimescaled;
__u64 ac_stimescaled;
__u64 cpu_scaled_run_real_total;
__u64 freepages_count;
__u64 freepages_delay_total;
__u64 thrashing_count;
__u64 thrashing_delay_total;
__u64 ac_btime64;
};
となっており v10 までの fields しか存在しない
apt-get source したファイルでは
ubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0/tools/accounting$ cat ~/linux-aws-6.2-6.2.0/include/uapi/linux/taskstats.h
#define TASKSTATS_VERSION 13
#define TS_COMM_LEN 32 /* should be >= TASK_COMM_LEN
* in linux/sched.h */
struct taskstats {
/* v10: 64-bit btime to avoid overflow */
__u64 ac_btime64; /* 64-bit begin time */
/* v11: Delay waiting for memory compact */
__u64 compact_count;
__u64 compact_delay_total;
/* v12 begin */
__u32 ac_tgid; /* thread group ID */
/* Thread group walltime up to now. This is total process walltime if
* AGROUP flag is set.
*/
__u64 ac_tgetime __attribute__((aligned(8)));
/* Lightweight information to identify process binary files.
* This leaves userspace to match this to a file system path, using
* MAJOR() and MINOR() macros to identify a device and mount point,
* the inode to identify the executable file. This is /proc/self/exe
* at the end, so matching the most recent exec(). Values are zero
* for kernel threads.
*/
__u64 ac_exe_dev; /* program binary device ID */
__u64 ac_exe_inode; /* program binary inode number */
/* v12 end */
/* v13: Delay waiting for write-protect copy */
__u64 wpcopy_count;
__u64 wpcopy_delay_total;
};
となってて v13 まであるのだが...
Kumassyよくみると usr/include が空になっている
ubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0$ find usr/include/
usr/include/
usr/include/.gitignore
usr/include/headers_check.pl
usr/include/Makefile
Makefile を眺め
ubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0$ make help | grep header
headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH
includecheck - Check for duplicate included header files
headerdep - Detect inclusion cycles in headers
ubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0$ make headers_install
HOSTCC scripts/basic/fixdep
HOSTCC scripts/unifdef
これでファイルができた
ubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0$ find usr/include/
usr/include/
usr/include/mtd
usr/include/mtd/ubi-user.h
usr/include/mtd/mtd-abi.h
usr/include/mtd/.nftl-user.h.cmd
usr/include/mtd/.ubi-user.h.cmd
usr/include/mtd/inftl-user.h
usr/include/mtd/.mtd-abi.h.cmd
usr/include/mtd/.inftl-user.h.cmd
usr/include/mtd/.mtd-user.h.cmd
usr/include/mtd/mtd-user.h
gcc -E すると ~/linux-aws-6.2-6.2.0/usr/include が参照されるようになったことがわかる
ubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0/tools/accounting$ gcc -I../../usr/include getdelays.c -E | grep taskstats
# 1 "../../usr/include/linux/taskstats.h" 1
# 41 "../../usr/include/linux/taskstats.h"
struct taskstats {
# 73 "../../usr/include/linux/taskstats.h"
# 133 "../../usr/include/linux/taskstats.h"
# 210 "../../usr/include/linux/taskstats.h"
static void print_delayacct(struct taskstats *t)
static void task_context_switch_counts(struct taskstats *t)
static void print_ioacct(struct taskstats *t)
print_delayacct((struct taskstats *) ((void *)((char*)(na) + ((int) (((sizeof(struct nlattr)) + 4 - 1) & ~(4 - 1))))));
print_ioacct((struct taskstats *) ((void *)((char*)(na) + ((int) (((sizeof(struct nlattr)) + 4 - 1) & ~(4 - 1))))));
task_context_switch_counts((struct taskstats *) ((void *)((char*)(na) + ((int) (((sizeof(struct nlattr)) + 4 - 1) & ~(4 - 1))))));
make できた
ubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0/tools/accounting$ make
gcc -I../../usr/include getdelays.c -o getdelays
gcc -I../../usr/include procacct.c -o procacct
getdelays が動いた
ubuntu@kumachine-cloud:~/linux-aws-6.2-6.2.0/tools/accounting$ sudo ./getdelays -p 589 -d
print delayacct stats ON
PID 589
CPU count real total virtual total delay total delay average
13 8000000 14010756 8673476 0.667ms
IO count delay total delay average
0 0 0ms
SWAP count delay total delay average
0 0 0ms
RECLAIM count delay total delay average
0 0 0ms
THRASHING count delay total delay average
0 0 0ms
COMPACT count delay total delay average
0 0 0ms
WPCOPY count delay total delay average
100 244100 0ms