curl-curl/docs/cmdline-opts/parallel-max.md
Daniel Stenberg 4654493fed
curl: add --parallel-max-host to limit concurrent connections per host
Where 'host' is protocol + hostname + portnumber.

Closes #18052
2025-07-31 23:30:40 +02:00

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---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Long: parallel-max
Arg: <num>
Help: Maximum concurrency for parallel transfers
Added: 7.66.0
Category: connection curl global
Multi: single
Scope: global
See-also:
- parallel
- parallel-max-host
Example:
- --parallel-max 100 -Z $URL ftp://example.com/
---
# `--parallel-max`
When asked to do parallel transfers, using --parallel, this option controls
the maximum amount of transfers to do simultaneously.
The default is 50. 65535 is the largest supported value.