Am 18.07.22 um 15:29 schrieb Stefan Wahren:
Hi,
i noticed that since Linux 5.18 (Linux 5.19-rc6 is still affected) i'm
unable to run "rpi-update" without massive performance regression on
my Raspberry Pi 4 (multi_v7_defconfig + CONFIG_ARM_LPAE). Using Linux
5.17 this tool successfully downloads the latest firmware (> 100 MB)
on my development micro SD card (Kingston 16 GB Industrial) with a
ext4 filesystem within ~ 1 min. The same scenario on Linux 5.18 shows
the following symptoms:
FWIW, here some information about the affected ext4 partition:
fc stats:
0 commits
0 ineligible
0 numblks
0us avg_commit_time
Ineligible reasons:
"Extended attributes changed": 0
"Cross rename": 0
"Journal flag changed": 0
"Insufficient memory": 0
"Swap boot": 0
"Resize": 0
"Dir renamed": 0
"Falloc range op": 0
"Data journalling": 0
options:
rw
bsddf
nogrpid
block_validity
dioread_nolock
nodiscard
delalloc
nowarn_on_error
nojournal_checksum
barrier
auto_da_alloc
user_xattr
noquota
resuid=0
resgid=0
errors=continue
commit=5
min_batch_time=0
max_batch_time=15000
stripe=0
data=ordered
inode_readahead_blks=32
init_itable=10
max_dir_size_kb=0
tune2fs 1.44.5 (15-Dec-2018)
Filesystem volume name: rootfs
Last mounted on: /
Filesystem UUID: 3857a514-b0f4-49ce-8430-34762068bb6f
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index
filetype needs_recovery extent flex_bg sparse_super large_file dir_nlink
extra_isize
Filesystem flags: unsigned_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 927360
Block count: 3755008
Reserved block count: 158603
Free blocks: 1770208
Free inodes: 731074
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 220
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8064
Inode blocks per group: 504
Flex block group size: 16
Filesystem created: Fri Mar 5 00:10:14 2021
Last mount time: Sun Jul 24 22:47:19 2022
Last write time: Sun Jul 24 22:47:18 2022
Mount count: 4
Maximum mount count: -1
Last checked: Tue Jul 19 09:16:29 2022
Check interval: 0 (<none>)
Lifetime writes: 25 GB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 32
Desired extra isize: 32
Journal inode: 8
Default directory hash: half_md4
Directory Hash Seed: 4f95e9ae-24e1-4c7f-bb32-f4a9c41649a7
Journal backup: inode blocks
