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bug#51787: GC takes more than 9 hours on berlin
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From: |
Ricardo Wurmus |
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Subject: |
bug#51787: GC takes more than 9 hours on berlin |
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Date: |
Fri, 17 Dec 2021 15:08:23 +0100 |
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User-agent: |
mu4e 1.6.10; emacs 27.2 |
Ricardo Wurmus <rekado@elephly.net> writes:
> I’ll run this on a few of the build nodes to get some more comparisons.
I ran “guix deploy” for hydra-guix-107, a node that was bought at the
same time as the one that is now the head node of ci.guix.gnu.org. I
copied over a current Guix and installed “fio”
(/gnu/store/qs9cyy5s95n2fbjmxs48iccqvsvj6wxr-fio-3.28/bin/fio) there.
Here’s the output:
--8<---------------cut here---------------start------------->8---
root@hydra-guix-107 ~# fio --randrepeat=1 --ioengine=libaio --direct=1
--gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=64 --size=4G
--readwrite=randrw --rwmixread=75
test: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B,
ioengine=libaio, iodepth=64
fio-3.28
Starting 1 process
test: Laying out IO file (1 file / 4096MiB)
Jobs: 1 (f=1): [m(1)][100.0%][r=172MiB/s,w=56.9MiB/s][r=44.2k,w=14.6k IOPS][eta
00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=45365: Fri Dec 17 14:50:41 2021
read: IOPS=42.9k, BW=167MiB/s (176MB/s)(3070MiB/18331msec)
bw ( KiB/s): min=21208, max=199928, per=100.00%, avg=171621.56,
stdev=46624.05, samples=36
iops : min= 5302, max=49982, avg=42905.39, stdev=11656.01, samples=36
write: IOPS=14.3k, BW=56.0MiB/s (58.7MB/s)(1026MiB/18331msec); 0 zone resets
bw ( KiB/s): min= 7424, max=66720, per=100.00%, avg=57364.22,
stdev=15612.42, samples=36
iops : min= 1856, max=16680, avg=14341.06, stdev=3903.10, samples=36
cpu : usr=6.27%, sys=24.78%, ctx=121626, majf=0, minf=11
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued rwts: total=785920,262656,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=64
Run status group 0 (all jobs):
READ: bw=167MiB/s (176MB/s), 167MiB/s-167MiB/s (176MB/s-176MB/s), io=3070MiB
(3219MB), run=18331-18331msec
WRITE: bw=56.0MiB/s (58.7MB/s), 56.0MiB/s-56.0MiB/s (58.7MB/s-58.7MB/s),
io=1026MiB (1076MB), run=18331-18331msec
Disk stats (read/write):
sda: ios=779469/260494, merge=0/6, ticks=932265/195191, in_queue=1127456,
util=99.50%
--8<---------------cut here---------------end--------------->8---
Here sda is RAID of two SSDs:
--8<---------------cut here---------------start------------->8---
racadm>>storage get pdisks -o
Disk.Bay.0:Enclosure.Internal.0-1:RAID.Integrated.1-1
Status = Ok
DeviceDescription = Disk 0 in Backplane 1 of Integrated RAID
Controller 1
RollupStatus = Ok
Name = Solid State Disk 0:1:0
State = Online
OperationState = Not Applicable
PowerStatus = On
Size = 223.001 GB
FailurePredicted = NO
RemainingRatedWriteEndurance = 99 %
SecurityStatus = Not Capable
BusProtocol = SATA
MediaType = SSD
UsedRaidDiskSpace = 223.001 GB
AvailableRaidDiskSpace = 0.001 GB
Hotspare = NO
Manufacturer = INTEL
ProductId = SSDSC2KG240G8R
Revision = XCV1DL67
SerialNumber = BTYG91520CHD240AGN
PartNumber = CN0T1WH8PESIT95302LTA01
NegotiatedSpeed = 6.0 Gb/s
ManufacturedDay = 0
ManufacturedWeek = 0
ManufacturedYear = 0
ForeignKeyIdentifier = null
SasAddress = 0x4433221104000000
WWN = 0x4433221104000000
FormFactor = 2.5 Inch
RaidNominalMediumRotationRate = 1
T10PICapability = Not Capable
BlockSizeInBytes = 512
MaxCapableSpeed = 6 Gb/s
RaidType = Unknown
SystemEraseCapability = CryptographicErasePD
SelfEncryptingDriveCapability = Not Capable
EncryptionCapability = Not Capable
CryptographicEraseCapability = Capable
Certified = Yes
NonRAIDDiskCachePolicy = Not Applicable
EncryptionProtocol = None
Disk.Bay.1:Enclosure.Internal.0-1:RAID.Integrated.1-1
Status = Ok
DeviceDescription = Disk 1 in Backplane 1 of Integrated RAID
Controller 1
RollupStatus = Ok
Name = Solid State Disk 0:1:1
State = Online
OperationState = Not Applicable
PowerStatus = On
Size = 223.001 GB
FailurePredicted = NO
RemainingRatedWriteEndurance = 99 %
SecurityStatus = Not Capable
BusProtocol = SATA
MediaType = SSD
UsedRaidDiskSpace = 223.001 GB
AvailableRaidDiskSpace = 0.001 GB
Hotspare = NO
Manufacturer = INTEL
ProductId = SSDSC2KG240G8R
Revision = XCV1DL67
SerialNumber = BTYG915502D9240AGN
PartNumber = CN0T1WH8PESIT95303BSA01
NegotiatedSpeed = 6.0 Gb/s
ManufacturedDay = 0
ManufacturedWeek = 0
ManufacturedYear = 0
ForeignKeyIdentifier = null
SasAddress = 0x4433221100000000
WWN = 0x4433221100000000
FormFactor = 2.5 Inch
RaidNominalMediumRotationRate = 1
T10PICapability = Not Capable
BlockSizeInBytes = 512
MaxCapableSpeed = 6 Gb/s
RaidType = Unknown
SystemEraseCapability = CryptographicErasePD
SelfEncryptingDriveCapability = Not Capable
EncryptionCapability = Not Capable
CryptographicEraseCapability = Capable
Certified = Yes
NonRAIDDiskCachePolicy = Not Applicable
EncryptionProtocol = None
--8<---------------cut here---------------end--------------->8---
--
Ricardo
- bug#51787: GC takes more than 9 hours on berlin, (continued)
- bug#51787: GC takes more than 9 hours on berlin, Mathieu Othacehe, 2021/12/10
- bug#51787: GC takes more than 9 hours on berlin, Ludovic Courtès, 2021/12/10
- bug#51787: GC takes more than 9 hours on berlin, Mathieu Othacehe, 2021/12/10
- bug#51787: GC takes more than 9 hours on berlin, Ludovic Courtès, 2021/12/10
- bug#51787: GC takes more than 9 hours on berlin, Mathieu Othacehe, 2021/12/11
- bug#51787: GC takes more than 9 hours on berlin, Mathieu Othacehe, 2021/12/12
- bug#51787: GC takes more than 9 hours on berlin, Christian Thäter, 2021/12/13
- bug#51787: GC takes more than 9 hours on berlin, Christian Thäter, 2021/12/13
- bug#51787: GC takes more than 9 hours on berlin, Mathieu Othacehe, 2021/12/17
- bug#51787: GC takes more than 9 hours on berlin, Ricardo Wurmus, 2021/12/17
- bug#51787: GC takes more than 9 hours on berlin,
Ricardo Wurmus <=
- bug#51787: GC takes more than 9 hours on berlin, Mathieu Othacehe, 2021/12/10
bug#51787: GC takes more than 9 hours on berlin, Ricardo Wurmus, 2021/12/10
bug#51787: GC takes more than 9 hours on berlin, Ricardo Wurmus, 2021/12/20