Internal Drive Performance Check - EtreCheck report question
I have two iMacs:
1) iMac27" Late 2013 - 1TB SSD and 24GB RAM - running Catelina
2) iMac 21.5" Late 2015 - 1TB Fusion HDD and 16GB RAM - running Big Sur
The 21.5 has been running really slowly lately, so I have been trying to clean up the launch daemons etc, and decided to run an ETRECHECKPRO report on it. At the same time, out of interest, I ran a report on the 27" too - to do a comparison
Maybe I am reading the reports wrong, but it looks to me that the HDD in the 21.5 actually performs better than he SSD in the 27" :
iMac 27"
Write speed: 290 MB/s
Read speed: 644 MB/s
iMac 21.5"
Write speed: 336 MB/s
Read speed: 895 MB/s
What should good set of performance figures for an internal drive look like? How can it be possible that mu SSD is slower than a 6 year old HDD Fusion drive?
Here are the relevant sections of the reports:
iMac 27” Late 2013
1TB SSD installed 4 years ago
Drives:
disk0 - APPLE SSD SD0128F 121.33 GB (Solid State - TRIM: Yes)
Internal PCI 5.0 GT/s x2 Serial ATA
disk0s1 - EFI (MS-DOS FAT32) [EFI] 210 MB
disk0s2 [APFS Container] 121.12 GB
disk2 [APFS Virtual drive] 121.12 GB (Shared by 5 volumes)
disk2s1 - S******** - Data (APFS) [APFS Virtual drive] (Shared - 41.55 GB used)
disk2s2 - Preboot (APFS) [APFS Preboot] (Shared - 83 MB used)
disk2s3 - Recovery (APFS) [Recovery] (Shared - 529 MB used)
disk2s4 - VM (APFS) [APFS VM] (Shared - 3.22 GB used)
disk2s5 - S******B (APFS) (Shared - 11.24 GB used)
disk1 - Mercury Electra 6G SSD 1.00 TB (Solid State - TRIM: No)
Internal SATA 6 Gigabit Serial ATA
disk1s1 - EFI (MS-DOS FAT32) [EFI] 210 MB
disk1s2 - S****B (Journaled HFS+) 999.86 GB (510.11 GB used)
Performance:
System Load: 2.40 (1 min ago) 2.09 (5 min ago) 1.99 (15 min ago)
Nominal I/O usage: 0.01 MB/s
File system: 16.84 seconds
Write speed: 290 MB/s
Read speed: 644 MB/s
iMac 21.5” Late 2015
1TB Fusion HDD drives
Drives:
disk0 - APPLE SSD AP0032H 24.00 GB (Solid State - TRIM: Yes)
Internal PCI-Express 5.0 GT/s x4 NVM Express
disk0s1 - EFI [EFI] 315 MB
disk0s2 [APFS Fusion Drive] 23.69 GB
disk2 [APFS Virtual drive] 1.02 TB (Shared by 6 volumes)
disk2s1 - Macintosh HD - Data (APFS) [APFS Virtual drive] (Shared - 142.67 GB used)
disk2s2 - Preboot (APFS) [APFS Preboot] (Shared - 382 MB used)
disk2s3 - Recovery (APFS) [Recovery] (Shared - 623 MB used)
disk2s4 - VM (APFS) [APFS VM] (Shared - 2.15 GB used)
disk2s5 (APFS) [APFS Container] (Shared - 15.32 GB used)
disk2s5s1 - Macintosh HD (APFS) [APFS Snapshot] (Shared - 15.32 GB used)
disk2s6 - Update (APFS) (Shared - 3 MB used)
disk1 - APPLE HDD HTS541010A9E662 1.00 TB (Mechanical - 5400 RPM)
Internal SATA 3 Gigabit Serial ATA
disk1s1 - EFI (MS-DOS FAT32) [EFI] 210 MB
disk1s2 [APFS Fusion Drive] 1000.00 GB
disk2 [APFS Virtual drive] 1.02 TB (Shared by 6 volumes)
disk2s1 - Macintosh HD - Data (APFS) [APFS Virtual drive] (Shared - 142.67 GB used)
disk2s2 - Preboot (APFS) [APFS Preboot] (Shared - 382 MB used)
disk2s3 - Recovery (APFS) [Recovery] (Shared - 623 MB used)
disk2s4 - VM (APFS) [APFS VM] (Shared - 2.15 GB used)
disk2s5 (APFS) [APFS Container] (Shared - 15.32 GB used)
disk2s5s1 - Macintosh HD (APFS) [APFS Snapshot] (Shared - 15.32 GB used)
disk2s6 - Update (APFS) (Shared - 3 MB used)
disk3 - ST320005 42AS 2.00 TB
External USB 480 Mbit/s USB
disk3s1 - EFI (MS-DOS FAT32) [EFI] 210 MB
disk3s2 - T********************a (Journaled HFS+) 2.00 TB (889.47 GB used)
Performance:
System Load: 1.87 (1 min ago) 1.98 (5 min ago) 1.69 (15 min ago)
Nominal I/O usage: 4.01 MB/s
File system: 18.79 seconds
Write speed: 336 MB/s
Read speed: 895 MB/s
iMac 27″, macOS 10.15
