Ricardo Wurmus <rek...@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