* Re: Performance regression in firmware-iwlwifi 0.38~bpo70+1 [not found] <20130709153104.20718ebb@thinkpad> @ 2013-07-10 3:07 ` Ben Hutchings 2013-07-10 5:32 ` [Ilw] " Grumbach, Emmanuel 0 siblings, 1 reply; 4+ messages in thread From: Ben Hutchings @ 2013-07-10 3:07 UTC (permalink / raw) To: Intel Linux Wireless; +Cc: debian-backports, Sergey Frolov, linux-wireless [-- Attachment #1: Type: text/plain, Size: 1144 bytes --] On Tue, 2013-07-09 at 15:31 +0300, Sergey Frolov wrote: > Hello. > > I would like to report a performance regression in the > firmware-iwlwifi 0.38~bpo70+1 package. > After installing it and reloading iwlwifi with a new firmware > iwlwifi-6000g2a-6.ucode, my adapter "Intel Corporation Centrino > Advanced-N 6205 [Taylor Peak] (rev 34)" can manage only about 200 kb/s > DL speed tops regardless of power saving options. This package has version 18.168.6.1 of this firmware. > Reverting to 0.36+wheezy.1 and reloading module with > iwlwifi-6000g2a-5.ucode resolves the issue. The AP is located in the > same room, it's an old 2.4Ghz 11g ASUS WL-320gE access point, > configured with wpa-psk encryption. This has version 17.168.5.3. > I am using linux-image-3.9-0.bpo.1-amd64 kernel from backports. This is based on Linux 3.9.6. > If you need any more info, please CC me, as I am not subscribed to this > list. Do you recognise this bug? Can you suggest any diagnostic information Sergey can provide? Ben. -- Ben Hutchings It is easier to write an incorrect program than to understand a correct one. [-- Attachment #2: This is a digitally signed message part --] [-- Type: application/pgp-signature, Size: 828 bytes --] ^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: [Ilw] Re: Performance regression in firmware-iwlwifi 0.38~bpo70+1 2013-07-10 3:07 ` Performance regression in firmware-iwlwifi 0.38~bpo70+1 Ben Hutchings @ 2013-07-10 5:32 ` Grumbach, Emmanuel 2013-07-10 7:49 ` Henrik Ahlgren 0 siblings, 1 reply; 4+ messages in thread From: Grumbach, Emmanuel @ 2013-07-10 5:32 UTC (permalink / raw) To: Ben Hutchings, Intel Linux Wireless Cc: debian-backports@lists.debian.org, linux-wireless, Sergey Frolov PiBPbiBUdWUsIDIwMTMtMDctMDkgYXQgMTU6MzEgKzAzMDAsIFNlcmdleSBGcm9sb3Ygd3JvdGU6 DQo+ID4gSGVsbG8uDQo+ID4NCj4gPiBJIHdvdWxkIGxpa2UgdG8gcmVwb3J0IGEgcGVyZm9ybWFu Y2UgcmVncmVzc2lvbiBpbiB0aGUNCj4gPiBmaXJtd2FyZS1pd2x3aWZpIDAuMzh+YnBvNzArMSBw YWNrYWdlLg0KPiA+IEFmdGVyIGluc3RhbGxpbmcgaXQgYW5kIHJlbG9hZGluZyBpd2x3aWZpIHdp dGggYSBuZXcgZmlybXdhcmUNCj4gPiBpd2x3aWZpLTYwMDBnMmEtNi51Y29kZSwgbXkgYWRhcHRl ciAiSW50ZWwgQ29ycG9yYXRpb24gQ2VudHJpbm8NCj4gPiBBZHZhbmNlZC1OIDYyMDUgW1RheWxv ciBQZWFrXSAocmV2IDM0KSIgY2FuIG1hbmFnZSBvbmx5IGFib3V0IDIwMCBrYi9zDQo+ID4gREwg c3BlZWQgdG9wcyByZWdhcmRsZXNzIG9mIHBvd2VyIHNhdmluZyBvcHRpb25zLg0KPiANCj4gVGhp cyBwYWNrYWdlIGhhcyB2ZXJzaW9uIDE4LjE2OC42LjEgb2YgdGhpcyBmaXJtd2FyZS4NCj4gDQo+ ID4gUmV2ZXJ0aW5nIHRvIDAuMzYrd2hlZXp5LjEgYW5kIHJlbG9hZGluZyBtb2R1bGUgd2l0aA0K PiA+IGl3bHdpZmktNjAwMGcyYS01LnVjb2RlIHJlc29sdmVzIHRoZSBpc3N1ZS4gVGhlIEFQIGlz IGxvY2F0ZWQgaW4gdGhlDQo+ID4gc2FtZSByb29tLCBpdCdzIGFuIG9sZCAyLjRHaHogMTFnIEFT VVMgV0wtMzIwZ0UgYWNjZXNzIHBvaW50LA0KPiA+IGNvbmZpZ3VyZWQgd2l0aCB3cGEtcHNrIGVu Y3J5cHRpb24uDQo+IA0KPiBUaGlzIGhhcyB2ZXJzaW9uIDE3LjE2OC41LjMuDQo+IA0KPiA+IEkg YW0gdXNpbmcgbGludXgtaW1hZ2UtMy45LTAuYnBvLjEtYW1kNjQga2VybmVsIGZyb20gYmFja3Bv cnRzLg0KPiANCj4gVGhpcyBpcyBiYXNlZCBvbiBMaW51eCAzLjkuNi4NCj4NCg0KSnVzdCB0byBt YWtlIHN1cmUgSSBwcm9wZXJseSB1bmRlcnN0YW5kIHdoYXQgeW91IGFyZSBzYXlpbmcgaGVyZTog b25seSB0aGUgZmlybXdhcmUgaXMgY2hhbmdlZD8gTm90IHRoZSBkcml2ZXI/DQo= ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Ilw] Re: Performance regression in firmware-iwlwifi 0.38~bpo70+1 2013-07-10 5:32 ` [Ilw] " Grumbach, Emmanuel @ 2013-07-10 7:49 ` Henrik Ahlgren 2013-07-10 7:53 ` Grumbach, Emmanuel 0 siblings, 1 reply; 4+ messages in thread From: Henrik Ahlgren @ 2013-07-10 7:49 UTC (permalink / raw) To: Grumbach, Emmanuel Cc: Ben Hutchings, Intel Linux Wireless, debian-backports@lists.debian.org, linux-wireless, Sergey Frolov On Wed, Jul 10, 2013 at 05:32:21AM +0000, Grumbach, Emmanuel wrote: > Just to make sure I properly understand what you are saying here: only the firmware is changed? Not the driver? BTW, in my Thinkpad x21e (Intel Wireless-N 1000) I've noticed a very high (~80%+) CPU utilization by the "irq/42-iwlwifi" kernel process with the 3.9.x series kernel (self-built from upstream GIT sources) and 3.10. Not sure in what exact 3.9 version this behaviour started. I'm using the standard 0.36+wheezy.1 (non-free) version of firmware-iwlwifi. ^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: [Ilw] Re: Performance regression in firmware-iwlwifi 0.38~bpo70+1 2013-07-10 7:49 ` Henrik Ahlgren @ 2013-07-10 7:53 ` Grumbach, Emmanuel 0 siblings, 0 replies; 4+ messages in thread From: Grumbach, Emmanuel @ 2013-07-10 7:53 UTC (permalink / raw) To: Henrik Ahlgren Cc: Ben Hutchings, Intel Linux Wireless, debian-backports@lists.debian.org, linux-wireless, Sergey Frolov > > Just to make sure I properly understand what you are saying here: only the > firmware is changed? Not the driver? > > BTW, in my Thinkpad x21e (Intel Wireless-N 1000) I've noticed a very > high (~80%+) CPU utilization by the "irq/42-iwlwifi" kernel process > with the 3.9.x series kernel (self-built from upstream GIT sources) > and 3.10. Not sure in what exact 3.9 version this behaviour > started. I'm using the standard 0.36+wheezy.1 (non-free) version of > firmware-iwlwifi. For CPU utilization: https://git.kernel.org/cgit/linux/kernel/git/iwlwifi/iwlwifi.git/commit/?id=01911dab97cb3e21e640aaca82689acec00ed848 https://git.kernel.org/cgit/linux/kernel/git/iwlwifi/iwlwifi.git/commit/?id=68972c46f2975d3d61f9dc9f311f77bfc8a8b12b ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-07-10 8:23 UTC | newest]
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2013-07-10 3:07 ` Performance regression in firmware-iwlwifi 0.38~bpo70+1 Ben Hutchings
2013-07-10 5:32 ` [Ilw] " Grumbach, Emmanuel
2013-07-10 7:49 ` Henrik Ahlgren
2013-07-10 7:53 ` Grumbach, Emmanuel
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