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Low performance (high effective IO latency) with io_scheduler and no/short polling or --overprovisioned

Status: Open.

#3202 In scylladb/seastar;

· travisdowns opened on Jan 13, 2026

Surprisingly low performance due to io_scheduler behavior with low iodepth and multiple shards

Status: Open.

#3201 In scylladb/seastar;

· travisdowns opened on Jan 13, 2026

bad_alloc on AIO teardown

Status: Open.

#3169 In scylladb/seastar;

· xemul opened on Dec 18, 2025

QUESTION: How to use seastar with heterogeneous workloads?

question

Status: Open.

#3160 In scylladb/seastar;

· masscry opened on Dec 15, 2025

SIGILL Crash due to _u.st == state::future assertion failure in seastar::future::set (Reactor/AIO related) on program exit

Status: Open.

#3151 In scylladb/seastar;

· ujoyli opened on Dec 11, 2025

The tests do not build at API_LEVEL=8

Status: Open.

#3144 In scylladb/seastar;

· travisdowns opened on Dec 10, 2025

httpd should close connections that have been idle for a long time

http

Status: Open.

#3130 In scylladb/seastar;

· nyh opened on Dec 2, 2025

master branch compile encounter error

Status: Open.

#3127 In scylladb/seastar;

· qiqistyle opened on Nov 30, 2025

Seastar-way of proxying HTTP requests?

Status: Open.

#3112 In scylladb/seastar;

· VinnyVicious opened on Nov 19, 2025

Calling <code>json_list_template&amp; operator=(const C&amp; list)</code> results in oversized allocation

Status: Open.

#3110 In scylladb/seastar;

· robertbindar opened on Nov 19, 2025

QUESTION: multiple apps in one process

Status: Open.

#3096 In scylladb/seastar;

· travisdowns opened on Nov 11, 2025

rpc: cross-cpu communication in networking

Status: Open.

#3073 In scylladb/seastar;

· avikivity opened on Oct 27, 2025