# avoid performance penalties from specter & meltdown patches

**URL:** <https://forums.suse.com/t/avoid-performance-penalties-from-specter-meltdown-patches/32013>\
**Category:** SLES Configure-Administer\
**Created:** [February 12, 2018, 10:09am UTC](https://forums.suse.com/t/avoid-performance-penalties-from-specter-meltdown-patches/32013 "2018-02-12T10:09:31Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![sharfuddin](https://avatars.discourse-cdn.com/v4/letter/s/e274bd/32.png) [@sharfuddin](https://forums.suse.com/u/sharfuddin)\
**Post date:** [February 12, 2018, 10:09am UTC](https://forums.suse.com/t/avoid-performance-penalties-from-specter-meltdown-patches/32013/1 "2018-02-12T10:09:31Z")

</div>

How can I configure the system so that patches for Specter and Meltdown do not effect the performance. If adding the following kernel parameters help:

```auto
pti = off, nospec, spectre_v2=off
```

Actually one of my customer runs SAP ERP atop SLE servers. SAP ERP is a trusted application and only local and trusted users access the system. Customer is asking me to configure the system so that performance impact could be avoided.

Please help

---

<div class="post-metadata">

**Author:** ![thsundel](https://avatars.discourse-cdn.com/v4/letter/t/13edae/32.png) [@thsundel](https://forums.suse.com/u/thsundel)\
**Post date:** [February 12, 2018, 11:51am UTC](https://forums.suse.com/t/avoid-performance-penalties-from-specter-meltdown-patches/32013/2 "2018-02-12T11:51:57Z")

</div>

[QUOTE=sharfuddin;51017]How can I configure the system so that patches for Specter and Meltdown do not effect the performance. If adding the following kernel parameters help:

```auto
pti = off, nospec, spectre_v2=off
```

Actually one of my customer runs SAP ERP atop SLE servers. SAP ERP is a trusted application and only local and trusted users access the system. Customer is asking me to configure the system so that performance impact could be avoided.

Please help[/QUOTE]

[https://www.suse.com/support/kb/doc/?id=7022512](https://www.suse.com/support/kb/doc/?id=7022512)

Thomas

---

<div class="post-metadata">

**Author:** ![sharfuddin](https://avatars.discourse-cdn.com/v4/letter/s/e274bd/32.png) [@sharfuddin](https://forums.suse.com/u/sharfuddin)\
**Post date:** [February 13, 2018, 7:57am UTC](https://forums.suse.com/t/avoid-performance-penalties-from-specter-meltdown-patches/32013/3 "2018-02-13T07:57:55Z")

</div>

Yes I went through the [https://www.suse.com/support/kb/doc/?id=7022512](https://www.suse.com/support/kb/doc/?id=7022512) and from there I deduced that following kernel parameters would help:

```auto
 pti = off, nospec, spectre_v2=off 
```

I am looking for endorsement; if my understanding is correct ?
