Backblaze only spawning 20 threads

[AkatsukiiDesu]

Does anyone else have an issue where the Backblaze client is only spawning a maximum of 20 threads even though you've set it higher?

[etbusch]

I don't have a solve for this but I can at least reproduce it. Backup settings are set for 40 threads and "Faster Backups", but only 20 threads:

app@7f04849f6d9b:/tmp$ ps aux | grep bzthread
app         1515  0.8  0.0 1921092 57908 ?       Ss   02:54   0:01 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_004_20251111025457_instru_572_00006_bzt.xml
app         1524  0.1  0.0 1921096 43304 ?       Ss   02:54   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_005_20251111025458_instru_572_00007_bzt.xml
app         1532  0.1  0.0 1921088 43164 ?       Ss   02:54   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_006_20251111025459_instru_572_00008_bzt.xml
app         1539  0.1  0.0 1921084 43272 ?       Ss   02:54   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_007_20251111025500_instru_572_00009_bzt.xml
app         1546  0.1  0.0 1921096 42960 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_008_20251111025501_instru_572_00010_bzt.xml
app         1553  0.1  0.0 1921024 42988 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_009_20251111025502_instru_572_00011_bzt.xml
app         1560  0.1  0.0 1921092 42932 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_010_20251111025503_instru_572_00012_bzt.xml
app         1567  0.1  0.0 1921088 43020 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_011_20251111025504_instru_572_00013_bzt.xml
app         1574  0.1  0.0 1921028 43132 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_012_20251111025505_instru_572_00014_bzt.xml
app         1581  0.1  0.0 1921084 43144 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_013_20251111025505_instru_572_00015_bzt.xml
app         1588  0.1  0.0 1921092 43172 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_014_20251111025506_instru_572_00016_bzt.xml
app         1595  0.1  0.0 1921028 43052 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_015_20251111025507_instru_572_00017_bzt.xml
app         1602  0.1  0.0 1921084 43272 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_016_20251111025508_instru_572_00018_bzt.xml
app         1609  0.1  0.0 1921028 43332 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_017_20251111025509_instru_572_00019_bzt.xml
app         1620  0.1  0.0 1921084 43276 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_018_20251111025510_instru_572_00020_bzt.xml
app         1627  0.1  0.0 1921096 42920 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_019_20251111025510_instru_572_00021_bzt.xml
app         1664  0.1  0.0 1921092 43116 ?       Ss   02:55   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_000_20251111025554_instru_572_00022_bzt.xml
app         1671  0.2  0.0 1921084 43376 ?       Ss   02:56   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_003_20251111025611_instru_572_00023_bzt.xml
app         1678  0.2  0.0 1921084 43376 ?       Ss   02:56   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_001_20251111025613_instru_572_00024_bzt.xml
app         1685  0.2  0.0 1921096 43104 ?       Ss   02:56   0:00 C:\Program Files (x86)\Backblaze\x64\bztransmit64.exe -threadpush C:\ProgramData\Backblaze\bzdata\bzthread\bzt_002_20251111025619_instru_572_00025_bzt.xml
app         1701  0.0  0.0   6612  2304 pts/4    S+   02:56   0:00 grep bzthread
app@7f04849f6d9b:/tmp$ ps aux | grep bzthread | wc -l
21