Hi Brian,
Could you provide more details about the test? Which configuration are you using (a profile or customized configurations) and which service you are using for the testing? Or provide the build command?
Thanks.
/Ken
From: Quach, Brian via TF-M tf-m@lists.trustedfirmware.org Sent: Thursday, April 27, 2023 7:02 AM To: tf-m@lists.trustedfirmware.org Subject: [TF-M] Re: psa_call performance
I also observed psa_connect() call time is now ~6000 cycles (previously ~3400 cycles in TF-M v1.1).
Regards, Brian
From: Quach, Brian via TF-M <tf-m@lists.trustedfirmware.orgmailto:tf-m@lists.trustedfirmware.org> Sent: Wednesday, April 26, 2023 12:56 PM To: tf-m@lists.trustedfirmware.orgmailto:tf-m@lists.trustedfirmware.org Subject: [EXTERNAL] [TF-M] psa_call performance
Hi,
Using isolation level 1 and IPC secure partition, I noticed psa_call() overhead for TFM v1.7 is significantly worse for than v1.1. Is this expected?
Assuming 1 invec and 0 outvec for the PSA call....
TF-M version Psa_call() round trip cycles v1.1 4038 v1.7 6051
Regards,
Brian Quach SimpleLink MCU Texas Instruments Inc.