# \#performance **URL:** https://community.solace.com/tag/performance/80.md [Latest](https://community.solace.com/latest.md) · [Categories](https://community.solace.com/categories.md) · [Tags](https://community.solace.com/tags.md) --- ## [What's new in the Perftest Harness — four months of improvements](https://community.solace.com/t/whats-new-in-the-perftest-harness-four-months-of-improvements/4893)
**Author:** [@ChristianHoltfurth](https://community.solace.com/u/ChristianHoltfurth)\ **Replies:** 0\ **Last updated:** [August 10, 2026, 2:36pm UTC](https://community.solace.com/t/whats-new-in-the-perftest-harness-four-months-of-improvements/4893 "2026-08-10T14:36:43Z")
Back in April, Hari posted about the Benchmark your Solace broker with the PerfTest Harness — an Ansible-based tool that uses sdkperf to automatically benchmark a Solace broker’s maximum throughput. Since then We’ve ship… --- ## [Publish block when over the memory / disk threshold](https://community.solace.com/t/publish-block-when-over-the-memory-disk-threshold/1834)
**Author:** [@Elaine](https://community.solace.com/u/Elaine)\ **Replies:** 1\ **Last updated:** [January 31, 2024, 1:54pm UTC](https://community.solace.com/t/publish-block-when-over-the-memory-disk-threshold/1834 "2024-01-31T13:54:31Z")
Hi, we are migrating from rabbit to solace now. There is a feature (Memory and Disk Alarms | RabbitMQ) RabbitMQ will block connections that publish messages when over the memory/disk threshold. I see there is a way to … --- ## [C# library is allocation heavy on the Send() for message arrays, any chance for improvement?](https://community.solace.com/t/c-library-is-allocation-heavy-on-the-send-for-message-arrays-any-chance-for-improvement/1542)
**Author:** [@Aleksei](https://community.solace.com/u/Aleksei)\ **Replies:** 10\ **Last updated:** [December 12, 2023, 1:54pm UTC](https://community.solace.com/t/c-library-is-allocation-heavy-on-the-send-for-message-arrays-any-chance-for-improvement/1542 "2023-12-12T13:54:13Z")
I have market data app that uses 3rd party C++ library that I wrapped in native C interface and I’m using it in C# app. I exchange memory between native and managed with zero allocations and copies using all the latest a… --- ## [High disk usage](https://community.solace.com/t/high-disk-usage/1807)
**Author:** [@hariharan](https://community.solace.com/u/hariharan)\ **Replies:** 2\ **Last updated:** [November 24, 2023, 8:36am UTC](https://community.solace.com/t/high-disk-usage/1807 "2023-11-24T08:36:09Z")
There was no consumer connection to the Queue, resulting in an increase in the current spooled messages. My question is, will the increase in current spooled messages also result in a corresponding increase in disk read … --- ## [PERFORMANCE! Why you should use Message.reset() in Solace APIs..!](https://community.solace.com/t/performance-why-you-should-use-message-reset-in-solace-apis/457)
**Author:** [@Aaron](https://community.solace.com/u/Aaron)\ **Replies:** 8\ **Last updated:** [October 24, 2023, 8:53am UTC](https://community.solace.com/t/performance-why-you-should-use-message-reset-in-solace-apis/457 "2023-10-24T08:53:05Z")
Hi Developers! Want to go fast? Faster, anyway? Read on… I’m just putting the finishing touches on a new bunch of Solace Java (JCSMP) samples, and have been doing a bit of performance testing with them. They are sti… --- ## [Spring Cloud Stream | Batch | TPS | Tuning](https://community.solace.com/t/spring-cloud-stream-batch-tps-tuning/1727)
**Author:** [@kirthi](https://community.solace.com/u/kirthi)\ **Replies:** 4\ **Last updated:** [July 31, 2023, 6:30am UTC](https://community.solace.com/t/spring-cloud-stream-batch-tps-tuning/1727 "2023-07-31T06:30:43Z")
In our micro service, we are using solace binder with SCS, during non-functional testing we found some differences in performance, Could you please help to understand. service - Processor is used. The TPS is approx 200… --- ## [Tuning pre-fetch for load balancing in Python](https://community.solace.com/t/tuning-pre-fetch-for-load-balancing-in-python/1519)
**Author:** [@AlexanderJHallAgain](https://community.solace.com/u/AlexanderJHallAgain)\ **Replies:** 2\ **Last updated:** [February 1, 2023, 10:08pm UTC](https://community.solace.com/t/tuning-pre-fetch-for-load-balancing-in-python/1519 "2023-02-01T22:08:13Z")
Hi Team, I have built a system comprised of a number of workers, N, (or application processing engines) fed by a single non exclusive queue. Each job on the queue either takes between 20 second and a minute to complete… --- ## [Slow Subscriber](https://community.solace.com/t/slow-subscriber/649)
**Author:** [@Abu](https://community.solace.com/u/Abu)\ **Replies:** 8\ **Last updated:** [March 23, 2021, 3:37pm UTC](https://community.solace.com/t/slow-subscriber/649 "2021-03-23T15:37:45Z")
Hi, I want to identify slow subscriber client in my sandbox environment. This is to mock or test when a client is marked as a slow consumer. Currently our slow subscriber panel in Grafana shows all clients as normal (i… --- ## [Approaches to consume the data from solace queues on need basis.](https://community.solace.com/t/approaches-to-consume-the-data-from-solace-queues-on-need-basis/552)
**Author:** [@Vempati](https://community.solace.com/u/Vempati)\ **Replies:** 2\ **Last updated:** [January 13, 2021, 6:05pm UTC](https://community.solace.com/t/approaches-to-consume-the-data-from-solace-queues-on-need-basis/552 "2021-01-13T18:05:20Z")
Hi Team, Could anyone share the solution approach for consuming the data from solace queues whenever it is needed. Lets says every 12 hrs or 24 hrs, the time frame might change as per the need. I am more looking in to … --- ## [How to ack message?](https://community.solace.com/t/how-to-ack-message/519)
**Author:** [@chauhraj](https://community.solace.com/u/chauhraj)\ **Replies:** 4\ **Last updated:** [December 14, 2020, 3:31pm UTC](https://community.solace.com/t/how-to-ack-message/519 "2020-12-14T15:31:10Z")
Hi, I am using JCSMP 10.9.1 API in my code. I want to control the acki’ng of the messages on the consumer side instead of relying on auto\_ack. So, I set the message ack mode to client\_ack. And I am calling message.ackM… --- ## [Slow subscriber causing solace spool quota blow up](https://community.solace.com/t/slow-subscriber-causing-solace-spool-quota-blow-up/491)
**Author:** [@Rajesh](https://community.solace.com/u/Rajesh)\ **Replies:** 7\ **Last updated:** [December 14, 2020, 9:47am UTC](https://community.solace.com/t/slow-subscriber-causing-solace-spool-quota-blow-up/491 "2020-12-14T09:47:42Z")
Hi Solace experts - I am new to solace world and getting to know things. We have solace set up in our application platform and it has been running fine for few weeks. As client applications are increased, we see some slo… --- ## [What is the expected outcome if failover happens while replay is in progress](https://community.solace.com/t/what-is-the-expected-outcome-if-failover-happens-while-replay-is-in-progress/168)
**Author:** [@rdesoju](https://community.solace.com/u/rdesoju)\ **Replies:** 2\ **Last updated:** [January 27, 2020, 4:17pm UTC](https://community.solace.com/t/what-is-the-expected-outcome-if-failover-happens-while-replay-is-in-progress/168 "2020-01-27T16:17:17Z")
Hi, Consider a scenario where a Queue listener (JCSMP) is listening with CLIENT\_ACK, typically a slow consumer processing the messages in the queue at a rate slower than producer in a guaranteed messaging approach with … --- ## [Initial latency observed up to 5 minutes with JCSMP clients](https://community.solace.com/t/initial-latency-observed-up-to-5-minutes-with-jcsmp-clients/150)
**Author:** [@rdesoju](https://community.solace.com/u/rdesoju)\ **Replies:** 7\ **Last updated:** [January 15, 2020, 3:19am UTC](https://community.solace.com/t/initial-latency-observed-up-to-5-minutes-with-jcsmp-clients/150 "2020-01-15T03:19:35Z")
Hi, I have a performance test setup in which ingesting 100 messages per second from 10 threads at 100 ms interval. As per my observation, the initial Producer to Consumer latency (Producer → Broker → Consumer) is obser…