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barrykn / big-sur-micropatcher

A primitive USB patcher for installing macOS Big Sur on unsupported Macs
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SSD Write and Read Spead Reduced so MacBook Pro 2012 working so slow #214

Open ahmetozcan999 opened 3 years ago

ahmetozcan999 commented 3 years ago

I installed Big Sur but my ssd working so slow. Ssd is working good on Catalina. In Catalina write 380MB/S Read 470 MB/S but in Big Sur both of 85MB/S I return Catalina and it is working fast again Both of Big Sur and Catalina same file system GUID and APFS How can I solve this problem

Ausdauersportler commented 3 years ago

Could you please explain the double posting of this very same message on the OCLP and this page.

You should at least know the patcher you have used. We would like to know the hardware, software, patcher edition, firmware release before we look into it.

ahmetozcan999 commented 3 years ago

@Ausdauersportler try all of patcher method and same issue. So I create post to all patcher page. Sorry for this.

First I use latest version of patcher. In bigsur my Mac is working too slow. But in Catalina it is so fast.

I have 8 GB Ram and 512 gb Ssd. I think it isn't normal working slow like this. For example I click safari it take 30 -40 second for open. Same with settings or about Mac or anything else. For example if I want remove item from dock, I right clickto item. And it is take 15-20 second to show me options.

I test my ssd with black magic test program. It is show in 65-80MB per seconds. But in Catalina it shows 300-400MB per second. There is a wrong thing in this. How can I solve this problem.

Ausdauersportler commented 3 years ago

While we were waiting for your reply we were checking SSD read and write speeds on unsupported Macs with Big Sur and we always nearly got the wire speed, i.e. close to 600 MB/s on the iMac12,2 with SATA III 6 GB/s and about 300 MB/s on iMac11,x with SATA II and 3 GB/s. So your problem cannot be explained by Big Sur.

Did you tried fresh installation on a separate APFS partitions for Big Sur? My only explanation would be you have installed (possibly through times machine restore) some tool what breaks the performance.

You are sure to still have the 400+ MB/s on Catalina - a broken SATA cable within the MacBookPro after changing the HDD with an SSD is a common problem.

ahmetozcan999 commented 3 years ago

@Ausdauersportler thank you for reply. I already did clean install. I think if I my ssd or pc have an issue it doesn't work fast in Catalina.

By the way while install procress when I try erase my disk on Big Sur. Disk utility stuck on creating partition table section. I wait almost 2 hour but it can't. So I install like this

1- I boot on Catalina internet recovery 2- I erase my disk apfs and guid partition table. 3- shut down 4- boot with bigsur 5-install Big Sur