That was my first idea too so I rebuilt without SSE, SSE3 and AVX
and it is still the same. I haven't rebuilt libgeotiff tho.
Here is the output of cpuid
mmom@mmom-workstation:~$ docker run --rm osgeo/gdal su -c "apt install
-y cpuid; cpuid" | grep SSSE3
SSSE3 extensions = false
SSSE3/SSE5 opcode set disable = false
SSSE3 extensions = false
SSSE3/SSE5 opcode set disable = false
SSSE3 extensions = false
SSSE3/SSE5 opcode set disable = false
SSSE3 extensions = false
SSSE3/SSE5 opcode set disable = false
And here are my cpu flags from cpuinfo
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc
cpuid extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic
cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt
hw_pstate vmmcall npt lbrv svm_lock nrip_save
No SSE3 on Phenom X4, only SSE/SSE2.
On 29/12/2019 21:51, Even Rouault wrote:
Is it possible that this is a compiler issue? Anyone else that can
test this on an AMD CPU? Mine are old Phenom II X4 965s.
Perhaps rather a runtime issue. I suspect this is related to a SSSE3
optimization that has been added in GDAL 2.2 that is used in this use case
(unpacking of byte buffer with a 2 byte stride to packed buffer)
From what I found on the net, I think this CPU doesn't support the SSSE3
instruction set (SSSE3 with three S, not to be confused with SSE3...)
Can you check the following ?
cat /proc/cpuinfo | grep ssse3
What is strange is that GDAL does have a runtime check to detect if SSSE3 is
available, so I'm not sure why you would get that issue. Unless that Docker
would wrongly expose SSSE3, but Docker is not a VM technology so it shouldn't
mess up with CPU capability discoveries. This is weird.
Can you try the following ?
docker run --rm osgeo/gdal su -c "apt install -y cpuid; cpuid" | grep SSSE3
In a DEBUG build of GDAL, you could disable at runtime the SSSE3 optimization
by defining the environment variable/configuration option GDAL_USE_SSSE3 to
NO, but this will not work on the release builds available on Docker.
--
Momtchil Momtchev <[email protected]>
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