[pbs-devel] [PATCH proxmox/proxmox-backup v3] tape: implement multithreaded read

[Dominik Csapak]

this is a replacement series for my previous patches[0]

I dropped the verification patches again, and moved the thread config to
the tape jobs/tape backup api. That way it's much nearer the actual
issue, and we don't run into problems with resource constraints, since
one job cannot run multiple times (if a user configures many jobs in
parallel, that must be deliberate then).

changes from v2:
* slight rewording of the commit message
* rebase on master (include pbs-api-types repo change)
* keep default to 1
* keep minimum of channel size 3

changes from v1:
* reordered code from verify,tape to tape,verify
* marked verify patches as rfc
* use a struct for saving the values in the datastore (as thomas
  suggested)
* introduces another verify patch to merge the chunk loading into the
  worker threads

0: https://lore.proxmox.com/pbs-devel/20240507072955.364206-1-d.csapak@proxmox.com/

proxmox:

Dominik Csapak (1):
  pbs api types: tape backup job: add worker threads option

 pbs-api-types/src/jobs.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

proxmox-backup:

Dominik Csapak (1):
  tape: introduce a tape backup job worker thread option

 src/api2/config/tape_backup_job.rs          |  8 ++++
 src/api2/tape/backup.rs                     |  4 ++
 src/tape/pool_writer/mod.rs                 | 14 ++++++-
 src/tape/pool_writer/new_chunks_iterator.rs | 44 +++++++++++++--------
 www/tape/window/TapeBackup.js               | 12 ++++++
 www/tape/window/TapeBackupJob.js            | 14 +++++++
 6 files changed, 79 insertions(+), 17 deletions(-)

-- 
2.39.5