This was an in place upgrade from 10.13.3 which in turn was an in place upgrade from something earlier by someone else. After enabling trimforce, boot times jumped up to 1 minute.īy now I'd already tried trimforce on and off on the original Sandisk Ultra II with 10.13.4. That's with trimforce disabled (the default).
#Enable trim mac os sierra sandisk install#
The first clean install of 10.13.4 on the Kingston 200 V reduced boot times to 32secs. My observations can be summarised as follows: I didn't try all combinations of all variables but stopped when performance was acceptable. 10 seconds to launch Photos with no photos in the library. 1 minute to launch the App Store, 12 seconds to launch Mail with no accounts set up. When the machine booted slowly, app launch times were extended beyond reasonable/tolerable levels too - e.g. That's from pressing the power button to sitting at a usable desktop after inputting the logon password. Also tried with a clean install of High Sierra 10.13.4 on a Kingston SSDnow 200 V+.Ĭold boot times started off at 1:20 (m:ss) and pretty much stayed consistently there across all variations with a couple of exceptions. Also tried with 10.13.3 previously clean installed on a different machine on a Kingston SSDnow 300 V 60GB SSD. 4GB RAM with a Sandisk Ultra II 120GB SSD. Ok, I'm adding system details here, but I'm not convinced the issue is SSD make/model related. What this indicates that it's possible to run without TRIM (for faster boot speeds), but STILL BE ABLE TO "TRIM THE DRIVE" using Disk Utility at reasonable intervals. THIS is the critical piece of info I'm looking for. Do you see the line in there "Trimming unused blocks"? It will give you a progress report as it does its thingĥ. Now, click the disclosure arrow to see the log of what DU is doingĤ. (I don't have the capability to do this, this is why I'm asking for someone else who DOES have the capability to try it to post and get back to us.)ģ. It will take less than a minute of your time. Trying this will harm or change NOTHING in your current setup. If so, I have something I'd like you to try and get back to us with the results. Running High Sierra with TRIM currently disabled? You have a Samsung SSD mounted in a MacBook? What follows is specifically for user allen.m.cohen: It runs as well today as when I first turned it on. I've been booting and running my 2012 Mac Mini from a USB3 SSD for FIVE YEARS without TRIM. It helps, but the drive will probably do fine without it.
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