Re: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS

2018-03-06 Thread Buterbaugh, Kevin L
t 20:36 To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org<mailto:gpfsug-discuss@spectrumscale.org>> Subject: Re: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS Kevin, The team is aware of Meltdown and Spectre. Due to the late availability of production-ready

Re: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS

2018-03-06 Thread IBM Spectrum Scale
to the Spectrum Scale (GPFS) team. From: "Avila-Diaz, Leandro" <lav...@illinois.edu> To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Date: 03/01/2018 11:17 PM Subject: Re: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS Sent by:

Re: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS

2018-03-01 Thread Avila-Diaz, Leandro
list <gpfsug-discuss@spectrumscale.org> Date: Thursday, January 4, 2018 at 20:36 To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Subject: Re: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS Kevin, The team is aware of Meltdown and Spectre. Due to the late ava

Re: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS

2018-01-08 Thread Peinkofer, Stephan
...@spectrumscale.org <gpfsug-discuss-boun...@spectrumscale.org> on behalf of Buterbaugh, Kevin L <kevin.buterba...@vanderbilt.edu> Sent: Monday, January 8, 2018 5:52 PM To: gpfsug main discussion list Subject: Re: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS Hi GPFS Team, Thanks for t

Re: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS

2018-01-08 Thread Buterbaugh, Kevin L
u>> To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org<mailto:gpfsug-discuss@spectrumscale.org>> Date: 01/04/2018 01:11 PM Subject: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS Sent by: gpfsug-discuss-boun...@spe

Re: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS

2018-01-05 Thread Richard Booth
mscale.org> Subject: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS Message-ID: <5d655862-7f60-47f6-8bd2-a5298f73f...@vanderbilt.edu> Content-Type: text/plain; charset="utf-8" Happy New Year everyone, I?m sure that everyone is aware of Meltdown and Spectre by

Re: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS

2018-01-04 Thread IBM Spectrum Scale
Kevin L" <kevin.buterba...@vanderbilt.edu> To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Date: 01/04/2018 01:11 PM Subject: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS Sent by:gpfsug-discuss-boun...@spectrumscale.org Happy N

Re: [gpfsug-discuss] Meltdown, Spectre, and impacts on GPFS

2018-01-04 Thread Skylar Thompson
While I'm not fully versed on the vulnerability or the proposed fixes, my understanding is that most of the performance impact from the fix is around having kernel memory completely separately from a process's user-space, which means every system call will have cache/TLB misses. This might mean